this post was submitted on 14 Jul 2023
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Physics are universal. The physical laws that we see would remain true for them
Could our understanding be a little off? Almost certainly, could it be incomplete? Absolutely.
It is, however, extremely unlikely that we’re wrong about relativity being a thing, and that we’re wrong about this universe being causal. Meaning that there is absolutely no chance for true FTL.
So if aliens exist… where are they? We’d be able to hear them talking- we probably wouldn’t understand, but we’d hear and see their signals.
I didn‘t say we are completely wrong, I am just saying that an alien civilization is maybe much more advanced than we are and is doing things that for us currently seem impossible. Just a few decades ago, what we are currently doing (internet/smartphone) also seemed impossible.
And there are theories about how aliens could‘ve visited earth, for example one is through a worm hole. Albert Einstein believed that worm holes exist and so far he has been right with pretty much every theory.
Not really. Which is why TNG/ds9/voyager had “iPads” in the show, why TOS had cell phones (that worked from space!).
Is it marvelous to the average person? Sure. But I doubt very much the average person today even understands how it works. I certainly wouldn’t be able to explain a semiconductor.
The web was an interesting surprise… but it has never been without the dreamers and nerds who made it happen.
Your giving past humanity far too little credit- they were, throughout history, at least as intelligent as we are. If you look at the greats- Archimedes, or Pythagoras, or Capinuricas or Newton- none of their scientific discoveries were completely invalidated. Their observations refined, sure, but we still use Archimedes equations for buoyancy, pythagorean theorem is still taught in math; and such like.
What’s come before is what enables us to expand and refine our understanding of now. What we learn now is what enables the future.
And most of all, it’s all on the same rule set, so there’s not going to be anything suddenly new.
Man then don‘t think about the last decades, but 300 years ago. This is splitting hairs. A lot of things we do every day nowadays, seemed impossible in the past (whether it be 60 or 300 years).
Edit: Another example would weapons. Just show a medieval knight a B-2 stealth bomber. Also seemed impossible back in the day.
Just to clarify, you realize that archimedes designed mirrors that did take down Roman warships in the siege, and it was discounted because idiots until recently “couldn’t imagine it”.
And that is entirely my point: you are acting like their ability to understand is less because they’re from a different time.
Sure such an individual would need a primer, but their capacity to understand is still there. They’re at least as smart as we are today; which just have a leg up based entirely on their work.
If you went to newton and explained a rocket (that uses Newtonian physics to him,) he would be like “that’s cool”;
If you went to DaVinci and explained that his work in automation (the automaton knight,) would one day lead to the Boston dynamics robot, he might be scared of it, but he’d believe it.
If you went to Charles Babbage and explained that his Difference engine and analytical engine would one day lead to the modern internet; he might be disappointed with what we’ve done with it; it he would recognize it’s all just math, that his machine was as capable even if it would take it longer.
Like us, there was a broad range in individual capacity. And there will always be. But, all of this is quite besides the point: there are things that we can definitively say don’t exist. In order to build something that truly is FTL; we would have to literally rewrite and forget our modern understanding of physics.
There are ways around it- traversing a wormhole would technically not be. There is no handwavium that would allow aliens to get here by a process we cannot understand or guess at. Without a primer, it might take us a while poking and prodding, it we have the capacity to understand it.
Which is the single best argument for why aliens have not visited. Because there’s a non-zero chance that we’d turn into genocidal xenophobes and use their technology to blow up entire planets.
Hell, we have politicians that are scared of human immigrants; wanting to send the army in to stop refugees.
My point is that an alien civilization maybe has thousands of years (or more) of technological advantage to us. They‘d have things, we currently couldn‘t assemble. If we had the technology and could study it, sure, that‘s different. And again, we already have theories how intergalactic space travel could work (e.g. worm holes), so there is definitely a possibility that an advanced civilization already did this. I don‘t think they visited earth though, but still.
Edit: Btw, also maybe an alien civilizations has completely different or new resources, we haven‘t even discovered yet.