Sunday, October 26, 2014

Catherine of Lyonesse

Is that a gorgeous cover, or what?

Considering that the book has now been out, in the UK, for about ten weeks, it is high time and then some that I highlighted it here, (But possible good news on my sluggish posting - fingers crossed! - below.)

How it is selling, as yet I have no idea. On Amazon, not very much, but I am told that it is not a "major channel" in British trade publishing sales, and the fact is that a first novel depends heavily on old fashioned sales off the bookstore shelves.

A public acknowledgement and thanks is due - and overdue - to Tamora Pierce, official Friend of this Blog, and the faerie godmother of Catherine over many years. Also to blog reader and occasional commenter Anita, who originally worked out the genealogy at the front of the book. But I assert sole credit for mistakes.

I should also tip my hat to a reader, 'Gracie,' who posted a wonderful reader review at Amazon. Five stars are always wonderful, but her elegant and insightful comments even more so. Courage and panache, indeed!

And also a tip of hat to a couple hundred of Tammy's fans who responded to her wonderiffic Goodreads review by putting CoL on their to-be-read lists.

Finally, I should say that while the ebook version is not currently available in the US (pending a hoped-for US edition), the paperback version can be ordered from anywhere.  :-)

Biochemistry Note

As I've noted here previously, the life sciences tend to get relatively short shrift in space discussions. I rarely remember life support ecology getting anything like the detailed discussion given to shiny stuff like propulsion systems.

But these things matter, as I have been reminded by being diagnosed with diabetes (type 2 - the kind that doesn't require daily insulin), AKA the American disease, the result of a lifetime of bad dietary habits coming back to bite me. I seem to be responding well to treatment, but one effect of the disease, relevant to this blog, is fatigue.

So, as treatment progresses, I hope to overcome that and start posting here more frequently.

And a Return to Space

Those loyal readers who still drop by here from time to time will surely (?) be glad to hear that I have lately been reading and thinking more about space again. I hope to post some of the results here soon. Meanwhile, I encourage everyone to (re)visit the wonderful Atomic Rockets website, which has been greatly expanded over the past few years even as this blog went relatively quiescent. 

Talk to you again soon!

Wednesday, July 9, 2014

Worldbuilding and the Hazards of Canon Fire

The Moving Finger writes, and having writ,
Moves on: nor all thy Piety nor Wit
Shall lure it back to cancel half a Line,
Nor all thy Tears wash out a Word of it.

-- Omar Khayyam

The moving finger can even, as in this case, return after an indecently long interval to write more.

But most to the point, the moving finger, by hitting the publish button, establishes canon. What previously were tentative, fluid possibilities are transformed into either fixed facts or equally fixed nullities. Even the digital era has not, so far, changed this in essentials - ebook editions, at least from commercial publishers, are as fixed as their print counterparts.

Thus, in the course of the spring, Catherine of Lyonesse has taken on its final, official form, the text gradually setting like concrete. Events and details that previously were fluid, contingent, subject to revision, are now fixed in place beyond the reach of piety or wit. Now they are canonical, or will be come the official publication date - August 14 - and the release of the book.

This effect of canonicity does not depend on the technology of print: Omar Khayyam wrote long before the printing press. But print - generating numerous identical copies of a text - surely amplifies this effect. Getting the first couple of copies of C of L off the print run was a wondefully solid experience.

Even more wonderfully the copies smell like books.

And the canonical version is right there in cold print.

In Catherine of Lyonesse I did little worldbuilding of the classic SF/F sort. The world of the book is meant to be evocative of our own, similar enough that the mechanics did not need to be worked out and tested for fit. The population and technology of Renaissance France were sufficient to support the French royal court; given a comparable kingdom, the royal court of Aquitaine did not need to be explained, only invented.

As a result, I nearly got caught by a stray round of canon fire. At some point in writing the manuscript I needed to mention a former king of Lyonesse, one of Catherine's ancestors, and made him Edmund II. The name was intended simply to evoke the Edwards of Plantagenet England.

Much later in the process I drew up a family tree, and merely listing successive kings hinted at a background arc: a failed king; a son who conciliates his subjects; a grandson who takes advantage of the revitalized monarchy to beat up on the neighbors. And so it turned out that the Agincourt-esque battle mentioned in the book would fit better with Edmund III.

By then I'd long forgotten that the manuscript itself still said Edmund II. I didn't catch the mistake until the very end of the proofing process.

Did it even matter? Within the book itself, not at all. Nothing in the text would tell the reader that Edmund le Conquérant should refer to Edmund III, not his father, "Good King" Edmund II - who is not mentioned in the book at all, not even indirectly.

But if I had not caught the discrepancy, I would have been put in a slightly odd quandary going forward. If there is a sequel, it probably will mention Good King Edmund. But then, which Edmund would he be? Would I keep the history arc I inferred from the genealogy, and ignore the regnal number given in the first book? Or accept the printed text as canon, and mentally reconstruct the dynastic history to fit?

Since I did catch the discrepancy before the book went to cold hard print, I was spared that sort of reconning. At least in this case. No doubt further journeys in sequel-land will reveal things I'll wish I had done differently in the first book, but that is a different matter.

More elaborately constructed worlds give their authors a better chance to catch mistakes - but also expand the universe of possible mistakes, so the tradeoff is probably a wash. And canonicity itself is arguably a geek obsession. Major sloppiness in a setting can break the spell - the willing suspension of disbelief - especially if readers can't be sure what merely factual matters in the story they can rely on. But most concerns about canon are just pedantry fuel. Which won't keep me from fretting about them.


The image, via Wikipedia, shows modern reproductions of 16th century naval guns from the wreck of Henry VIII's Mary Rose.

Saturday, January 4, 2014

Wine-Dark Sea

Not to belabor the obvious, but I have taken a long and unplanned vacation from this blog. After more than six years it has become a challenge to come up with topics that have not already been beaten to death here.

So I will make absolutely no promises about frequency or consistency of posting, but here you go!

There is a curious enchantment to Dark Ages. They are dark mainly to us, with few if any written records, yet they loom large in our imaginative heritage.

The Dark Age of Greece - by convention it is in the singular, not 'Dark Ages' - might be dated with traditionalist pseudo-precision as running from 1174 BC to 776 BC. The end date is the first Olympiad, the earliest recorded date of 'historical' Greece. The start date is ten years after the fall of Troy, when Odysseus finally gets back to Ithaca, last of all the surviving Achaean heroes to make his way home.

The traditional dates for the Trojan War itself, 1194-1184 BC, were an estimate by Eratosthenes, better known in geekdom for his impressively accurate computation of the size of the Earth. But the first curious thing about the Dark Age of Greece is that his date for the fall of Troy is also impressively accurate, even though it was based on premises that were shaky, obscure, or both.
The current archeological dating for the destruction of Troy VIIa - a destruction apparently due to war - is given as 1230-1190/1180 BCE, a range that just neatly overlaps the traditional date.

True that Eratosthenes' dating was only one of several classical estimates for the fall of Troy, and if you include enough of the others you can make a plausible case that Eratosthenes merely got lucky. If you scatter a dozen estimates over a 200 or 300 year period, one of them is likely to fall within a couple of decades of any given date.

But 1184 became the standard traditional date for the fall of Troy. Score one for Eratosthenes, not to mention Homer.

To us the oddest episodes in the Odyssey may be when Odysseus' son Telemachus visits Sparta and finds Menelaus and Helen living in comfortable domesticity, as though all that awkward business about Paris of Troy had never happened. Other homecomings, the Nostoi in Greek tradition, were more turbulent.

Odysseus, not home yet, would have his own troubles, though they seem to end well for everyone except those annoying suitors (and the servingmaids who had been overly friendly with them). Most notorious of the homecomings was that of Agamemnon, King of Men, finished off in his bath by wife Clytemnestra. (She arguably had good reason.)

To judge by the archeological record, however, practically all of the homecomings must have gone badly. Every Mycenaean palace was destroyed, with the sole exception of the (rather minor) palace at Athens. As a further complication the wave of destruction - one scholar has dubbed it simply the Catastrophe - peaked right around 1200 BCE, slightly before the putative date of the Trojan War.

What sticks most in my mind is sandy Pylos, the city of wise old Nestor. Telemachus also visited Pylos in his journey, where he found Nestor leading his people in sacrificing bulls (or was it oxen?) to Poseidon. All seems to be going well for the Pylians - if Homer had wanted Foreshadowings of Doom in his narrative, he could have provided them, and he doesn't.

In fact, however, sandy Pylos went down in flames circa 1200 BCE. And unlike Mycenae, which struggled on through a couple of archeological destruction layers before final abandonment, Pylos went down for the count.

Left in the smouldering ruins were clay tablets, fortuitously baked in the conflagration, on which scribes had carefully recorded all the unromantic details of Bronze Age palace management.They also provide the Foreshadowings of Doom that immortal Homer does not: Watchers have been dispatched to guard the coast, some 600 rowers are being mustered, and there are hints of an emergency human sacrifice.

The fashion in the fairly recent past was to downplay any real connection between Bronze Age events and the Homeric tradition. The magisterial Moses I Finley dismissed any Bronze Age element in the epics as a mere few Mycenaean 'things.' Lately the scholarly fashion cycle seems to be going the other way, helped along by other fire-preserved clay tablets, from Hittite archives, that mention a place called Taruisa or Wilusa, and troublesome people called Ahhiyawa - evoking Troy, its alternate name Ilios, and the Achaeans, sackers of cities.

For historical, or para-historical fiction, this would be more than enough. A lot of plausible reconstruction of events can be slipped through the error bars in archeological dating. If Troy fell in 1230 BCE, then whatever happened to Pylos happened a generation after Telemachus' visit, give or take, and had no reason to be hinted at in the Odyssey. Perhaps it belonged to a different story line.

But that is the mystery and enchantment of the Greek Dark Age. Moses I Finley may have been wrong to dismiss 'Mycenaean things,' but he is right in saying not to judge a culture only by its material poverty.
An oral tradition persisted and developed through its obscure generations.

The tradition did not preserve everything. If there was ever an epic sung of the fiery end of Pylos, it vanished nearly without trace. (A sketchy account held that Nestor's descendents were exiled from Pylos, turned up in Athens, and eventually founded Ionia.) But the tradition did preserve some things, however much refracted by oral transmission.

It is unlikely that we will ever find a source document that directly records the specific people and events that have come down to us as the wrath of Achilles and the wanderings of Odysseus. We glimpse them - vividly so - across a wine-dark sea of time.


Obligatory space reference: When your subject is Odysseus, the Major Tom of Bronze Age heroes,  you don't really need an obligatory space reference. But I provided one anyway.

The image of an archaic era Greek galley comes from a Project Gutenberg ebook.

Monday, September 23, 2013

Vandenberg Spaceport

I'm baaaaack!

Yes, the hiatus has been far too long - I kept thinking 'just another day or two,' after a move, working on Catherine of Lyonesse, an annoying and voltage-draining sinus infection, and, well, work.

The move means a regretful farewell to the F line streetcars, 100,000-ton containerships, and more places to eat than we could ever possibly try. On the other hand, the Central Coast does have a justified reputation as a corner of paradise.

Of more interest to most readers here, the move puts me back within decent viewing distance of launches from Vandenberg Air Force Base.

Alas, relentless California coastal summer fog rendered the late-August launch of a Delta IV Heavy invisible. As the seasons turn, bringing Indian summer to the coast, I have better hopes for the upcoming Falcon 9 launch, postponed from midmonth and now scheduled for September 29th.

For those who live near the West Coast, or simply want to keep track of launch schedules, here is a Web page listing scheduled Vandenberg launches.

This launch schedule also provides some important - and frustrating - lessons about the practicalities of space flight.

The most important of these lessons is that space launches are rare. Not counting ICBM test flights (one pending, and one I slept through and missed a couple of nights ago), three launches are scheduled between now and March. Throw in the late-August Delta IV launch and it comes to four launches over an eight-month period.

This is surely not an 'efficient' usage of facilities and resources. A space launch center must be broadly comparable to a large airport. The vehicles it handles are about the same size as jetliners, and at least as demanding. They must be prepped, serviced, and sent on their way, using a lot of specialized equipment, and - even more expensive - teams of human expertise.

If a major airport handled one flight every other month ... airline tickets would not be cheap.

In fairness, Vandenberg is not the most heavily used launch center. It is used for polar-orbit launches, particularly for spy satellites, though also for some types of geosats for which maximum coverage of the Earth's surface is important. Polar-orbit launches cannot benefit significantly from Earth's rotation, so they are avoided unless specifically called for.

But sometimes they are called for, meaning that all traffic cannot be consolidated to a single launch site. Worldwide there have been rather less than 100 launches in each of the last few years -74 in 2010, 84 in 2011, 78 last year, and 52 so far this year.

This includes a handful of failures each year; out of 286 attempts this decade, 18 were failures, a 6 percent failure rate. This is, I believe, a somewhat higher failure rate than in the last couple of decades - at least in part, I'd guess, because of more new and inexperienced players in the game.

But any way you cut it, space launches are not an everyday event - more like one or two per week, worldwide.

The problem of low traffic volume does not just drive up the cost of launching rockets. Production of any one given type is only a dozen or so per year - up to 19, in 2011 for the Russian workhorse Soyuz (R-7) and China's Chang Zheng. Individual Western booster types rarely see more than half a dozen launches per year. Forget production-line efficiencies.

This traffic volume also puts paid to reusable launch vehicles. Quite apart from technical challenges, there just isn't the traffic to keep them busy. (And since payloads vary widely, you'd really need a stable of types, just as with expendables.)

In fact, given the traffic level, a stable of expendables is the most cost-effective approach. For any given individual payload they are far less expensive than a reusable vehicle that has to not only get the payload up, but then get itself back down.

Yes, this is a dead horse I have beaten here many times before, and will no doubt beat again. But actually living where I can watch space launches brings some immediacy to the topic.

On the bright side, we are sending some 80-odd missions a year into orbit and beyond. More than that, in fact, since many launches carry multiple satellites. As also noted here before, we have sent missions to every major planet in the Solar System, and a good many other objects.

And I am looking forward to Sunday morning, when that Falcon 9 is scheduled to go up. With a little bit of luck the sky will be clear.


The image, via Flickr, shows a Delta IV Medium launch from Vandenberg, last year.

Sunday, July 14, 2013

Worldbuilding on the Fly?

This blog is devoted in substantial measure to world building. The worlds it assists in building may lavish disproportionate effort on fighting space battles, but this is by no means unusual, and is arguably by popular demand.

For this world building task Rocketpunk Manifesto has implicitly advocated for an exacting - some would say anal - approach, calling for careful attention to background conditions and disciplines ranging from physics to economics.

In none of this is this blog unique, or even particularly original. There is indeed an entire cottage industry devoted to arguing for this approach, and occasionally providing some tools alleged to be helpful in the task.

Yet when it came to actual worldbuilding for a novel (and prospective series) I cheerfully ignored my own advice. I do have a map for Catherine of Lyonesse, and I have worked out (or friends and fans of the book have worked out) some genealogies and coats of arms. But I did not formulate most of my background by writing/sketching it out. The greater part of it thus remains impressionistic, often only implicit, rather than exact and formalized.

For that matter, aside from a handful of specific references there is very little obvious connection between the subject matter of this blog and the subject matter of the book.

Which raises the question of how important detailed world building actually is to SF or fantasy fiction, and what the relationship is between stories and the worlds they are set in.

Could this be a right-brain / left-brain sort of thing? (Does anyone even speak that way any more? Or has all of that gone the way of the leisure suit?) I certainly feel that creating interactions between characters calls on a quite different set of imaginative capabilities from, say, creating the technological characteristics of space warcraft.

These differences are not unrelated, perhaps, to those I have those I have suggested between AI as it was traditionally imagined and AI as it has actually developed. In a nutshell, we supposed that a computer able to play winning chess would do so in the same still-mysterious way that human chess masters win. Instead, as it turned out, plain old brute force - if you have enough of it - is quite sufficient.

And humans are capable of thinking in a brute-force way, which is why we can program computers. Yet computer programming itself remains an art, much to the frustration of management types in the industry.

In fact, Catherine of Lyonesse springs ultimately from the same geeky interests that animate this blog. Eons ago, in college, some friends and I came up with a naval-centric 'world game' based loosely on a 16th century setting. Lyonesse, a loose synologue of Tudor England, was my country in this setting.

The game itself met a common fate: It was too complex to design, much less play, and soon faded away. But in the meanwhile, by way of background flavoring, I had endowed Lyonesse with its loose counterpart to Gloriana, with a suitably period name: Catherine.

And as in actual history, once she is allowed to exist, even imaginatively, Gloriana steals the show. The idea stuck in my mind until I finally decided to try writing it, and found that I liked the results.

And for story purposes, it turned out that Catherine was very much more interesting than, say, her ships. Certainly the ships have their own interest - very much characteristic of what I have discussed in this blog. And I could have written stories about them. But Catherine stubbornly insisted on the story being about her. (Egotistical, yes, but what you expect of a royal heiress?)

So here I am.

In short, detailed world building is at least semi-independent of the stories which it allegedly is designed to support. Like building a model railroad layout, it can have satisfactions entirely independent of stories. And, on the flip side, stories do not necessarily call for that sort of background detail.

Stories - at least in SF/F and kindred genres - do call for some level of world building, or at least world-consciousness on the author's part. We wish to avoid glaring inconsistencies, or plot holes that a containership could pass through.

But the knowledge a story calls for is usually impressionistic. Whether a narrative space battle works will ultimately depend on whether it feels convincing. Technical specifics, beyond what the crews would be thinking about in action, are more likely to get you into trouble than out of it.


The image of Henry VIII's Mary Rose is from the so-called Anthony Rolls. These contained (fairly mediocre) sketches of each royal ship, along with such information as tonnage, armament, and crew. All in all a fascinating precursor to Jane's Fighting Ships, though alas only for the English navy.

Sunday, June 9, 2013

How Much Do We Know?

I've finished the first round of editorial revisions to Catherine of Lyonesse, so I'm back to these haunts again after a somewhat excessive absence.

The question in the title has come up here before, though my Google fu falls short of finding all relevant links, but it at least appears in the comment thread to this post from a couple of years ago.

It was brought to mind by an email from a friend (actually, my brother-in-law, who reads cosmology and theology for pleasure), with the following quote, from theologian Karl Rahner:
"...what is called knowledge in everyday parlance, is only a small island in a vast sea that has not been traveled... Hence the existential question for the knower is this: Which does he love more, the small island of his so-called knowledge or the sea of infinite mystery?"
Vast untraveled seas should be near and dear to the hearts of most readers here. For, whatever formal arguments we make, isn't this the core motivation for interest in space travel?

So ... how much do we know? Obviously we know almost nothing about the details of the Universe. The Kepler mission has not yet found an Earth equivalent (in size, mass, and relative orbital distance from its primary). It has found several near-misses, and those are out of a very limited survey. Even with instantaneous anywhere-to-anywhere travel, however, an exhaustive search for earthlike worlds would be ... exhausting.

The more immediate question is how much we know in broad outline, or to put it another way, how much do we know at the level of basic physics. Do we know a lot? Or only a tiny part of what there is to be known, even on a general level?

As often happens here, there are cogent arguments to be made in both directions. As also often happens here, the arguments for each position are not simply contrary, but more nearly orthogonal to one another. The arguments differ on a meta level.

Thomas S. Kuhn, author of the Structure of Scientific Revolutions, has much to answer for when it comes to political and bizz-speak cliches: He launched the word paradigm on its course of infamy. But his core insight was that major developments in the sciences do not just extend our understanding: They transform it.

This insight suggests in turn that just as Einstein supplanted Newton, who supplanted Aristotle, so the next physics revolution should supplant Einstein. Familiar realms will still be well approximated by the older physics. (When your car runs out of gas, its behavior is Aristotelian, not Newtonian.) But entirely new realms will be opened.

The strongest contrary argument (that I am aware of) does not try to refute this point, but instead seeks to render it nugatory. Why should we expect 'the next physics revolution'? Until nearly Einstein's day, fundamental physics was essentially a hobby; since his day it has been an industry.

Once lots of smart people put enormous effort into something, chances are they will figure it out pretty well. The Age of Exploration relentlessly stripped the map of its Here be Dragons blank spaces. The Lost Civilization subgenre of Romance, contemporary with the dawn of SF, was its last gasp.

Parallel reason suggests that if a century of industrial-scale physics research has not superseded Einstein, perhaps the reason is that Einstein essentially got it right. Which is a something of a bummer for FTL (even if FTL is not absolutely precluded), and a bummer on a broader philosophical level as well.

On the third hand ... so far as I can tell, there is a good, robust reason to think that Einstein did not essentially get it right. Proviso that I am going way beyond my physics pay grade here, but I am given to understand that General Relativity and quantum theory are mutually contradictory. On a fundamental level, that is, they cannot both be right.

Indeed, more than that, they must both be wrong - because if either one were valid, we could either dispense with the other or else reconcile them.

God, as Einstein supposedly said, does not play dice with the Universe. To which one famous response is supposed to be, Not only does He play dice, but He throws them where we can't see them. (Another response, attributed to Neils Bohr, was "Stop telling God what to do.")

In short, our fundamental physics is a cobble. It is a magnificent cobble, but still a cobble, a world-view or Universe-view constructed out of contradictory and necessarily flawed theories.

I find this quite refreshing, because on some conceptual level it restores the blank space to our maps. Superseding the muddle of General Relativity and quantum theory may be exceedingly difficult - almost certainly is, since a lot of bright people have been trying to do so for three generations, so far without success. But our physics is still a muddle.

To be sure, this does not necessarily mean that any 'next physics revolution' is awaiting us, even in principle. Theists, at least, can fall back on what the Evil Website calls Bellisario's Maxim: Don't examine this too closely. Though I am not sure how comfortable orthodox believers in the Abrahamic faiths would be with a God who, like mortal SF writers, handwaves His way past contradictions in world building.

Anyway, that would make the Universe even more mysterious.


Whether or not the Universe is ultimately mysterious - or even whether or not we already have learned much about its basic workings, it is is certainly full of Cool Stuff. The image comes from Astronomy Picture of the Day (APOD).

Sunday, April 28, 2013

The Balance of Technology

In comments on the (relatively!) recent post on monarchy in SF/F I remarked on balance of technology as a key element of successful worldbuilding. Regular readers will not be surprised that the subject has come up before, explicitly so in Space Warfare XV: Further Reflections on Laserstars. (Three years ago - yikes!)

The particular example I gave there of 'unbalanced' technology came from a science fiction novel I once had, in which figured a World War II era heavy cruiser that had been refitted with smoothbore guns.*

This is something you probably do not want - unless you do want it, perhaps because (as in the book) you are dealing with a post-apocalyptic setting having a mix of surviving high-tech artifacts and the much more rudimentary technology that the survivors can contrive on their own.

Needless to say, 'unbalanced' technology has its own interest and appeal, which is one of the factors that has made the post-apocalyptic subgenre so popular. And, to get really pedantic - something this blog never fears to do - unbalanced technologies also have their own logical balance.

My personal guess, for example, is that people who could maintain a steam turbine power plant in operable condition would also be able to keep precision-machined guns in working order, and even provide ammunition and powder, if perhaps in limited supplies.

Likelier 'unbalanced' technologies might include sailing vessels with auxiliary motors available for limited use, and a limited, perhaps dwindling supply of modern weapons. Or drones with canvas wings on aluminum-tube frames, powered by lawn mower engines and controlled by smartphones.

What is not particularly likely, I think, is a simpler linear regress, such as steampunk-era ironclads (cool though they are). Building a 10,000 ton ironclad requires the ability to harness resources on a large scale, and a massive if unsophisticated industrial base. And anyone who has those things can systematically research more advanced technologies, especially if even a few artifacts have survived for reverse engineering.

Disclaimer and proviso: Of course the rule of cool trumps all these considerations, which is why post-apocalyptic futures tend to be heavy on punk rockers and motorcycles.

Which brings us back to balanced technologies. Alas, having brought you this far, I really don't have magic solutions to offer for keeping a futuristic setting's technologies in balance. The further you get from a souped-up present day, the less obvious it is what technologies should fit together neatly.

Does FTL imply that you 'should' also have torch drives for normal space operation? Or normal-space propulsion as demi-magical as FTL itself is? Or could a future starfaring civilization (linked on general principles) be using two-stage expendable rockets to get into orbit, and rendezvous with upper stages to get to wherever the jump points are?

In this case there are plausible (at least plausible-sounding!) arguments going both ways. On the one hand, FTL implies a revolution in fundamental physics, which ought to enable a whole range of new technologies involving pretty much every aspect of life. On the other hand, a century after Einstein, Newton still provides a pretty complete explanation of how our actual space propulsion technology works.

What I can say - unhelpful though it may be - that the general principle of balance of technology also applies to other aspects of the speculative subgenres of Romance. Other things equal, magic too should be in some kind of balance: If every hedge witch can work powerful spells (even if not always reliably), it is hard to then turn around and have magic effects be few and far between.

A bit more vaguely, I feel that this principle applies to social and political worldbuilding as well - suggesting that it is a bit problematic to project agrarian-age institutions such as feudalism or the Roman Empire into a post-industrial future.

On a more cheerful note - from a writer's perspective, not necessarily that of your characters - the balance of technology is dynamic, not static. No small part of the entertainment value of the 16th century is that its technology was in rapid transition, as indeed was its broader culture. Early-modern tropes, such as royal musketeers, existed alongside medieval tropes such as knights in full armor.

And in an encounter it is not always a given that the more 'modern' combination would prevail. The same is broadly true in any era of rapid technological and social change.


* Does this story element ring a bell with anyone? As I recall, the book (which probably dates back to the 70s, at least) also had an attempt to launch a space ark, which did not end well.

The image, from a site called, is described as a post-apocalyptic PC case mode. To me it looks more like a steam powered laser. And no one should be surprised that most Google Images under 'post-apocalyptic technology' involve punk rockers, motorcycles, or both.