Comment by vintagedave
18 hours ago
It is. I wish the conspiracy theorist 'the pyramids could not have been built by humans' etc etc crowds didn't exist, because I wish there was space to theorise about pre-human, pre-ape intelligent culture just for fun.
Same with UFOs. It seems to have changed in the past few years, but for a long time interest in them was associated with wackiness, and it was not something you could really discuss with a genuine sense of interest without the stain of appearing to believe something you didn't. It's intellectually and socially important to be able to be able to be curious and speculate without the appearance of belief in something.
That ol' Silurian Hypothesis is fun, but, knowing how damn smart birds are, it's not inconceivable that the theropods could have become advanced enough to be at least tool-users.
Of course, now, we know they probably had as much similarity to lizards as we do.
Another interesting thought experiment is an octopus civilization. They are probably smart enough to have also developed along those lines.
Depending on what that civilization would have looked like, there might not be much left.
I remember reading an essay (probably linked from here), that it might only take a couple of million years, to completely wipe all traces of even an advanced, mechanized civilization. They posited that the only evidence of our civilization, in a few million years, would be marbles.
> that it might only take a couple of million years, to completely wipe all traces of even an advanced, mechanized civilization.
It depends who comes searching. u235 has a half-life of ~700m years, so finding it in enough places (i.e. rocket silos, even if underground) and obviously processed into spheres, would raise some advanced alien eyebrows. There's also a chance that some things we left on the Moon / in high orbits will survive for a few million years. (also the test tubes on Mars and the rovers themselves, some have RTGs which, even if "depleted" of usable energy might still register as artificial)
Items degrade but what often remains is imprint of it in surrounding material, that over time becomes rock. We dumped enough shit all around us that is too smooth/right angled/whatever to look like natural product. If anybody digs enough, they will find enough evidence, direct or indirect.
That is, till all currently-up tectonic plates submerge for melting. But since they don't move by same speed, some of it will probably remain around till sun inflates and scorches surface or even absorbs Earth. That will be probably it, melted surface will hide or destroy all of it. But thats what, 1 billion years in future?
2 replies →
In a couple million years, what you’ll see are the mineral deposits where dumpsters are today, with all the materials that are not economically viable to recycle, but that will remain as they were for very long times - metal alloys, rocks that shouldn’t have formed at that time and place, oil deposits where plastics were that appear much older than the adjacent substrate in carbon dating, and so on.
The shape is erased, but the chemical composition mostly remains.
[dead]
Was the sense of wackiness wrong though? Nearly all UFO claims went away once high quality cameras in smartphones became ubiquitous. It's useful to play around with ideas, yes, but it's also important to acknowledge that some ideas simply are wishful thinking.
>Nearly all UFO claims went away once high quality cameras in smartphones became ubiquitous.
If only, but no. Thanks to equally ubiquitous video and image editing and now AI and the profit potential of social media there are more such claims than anyone can count.
The sitting president of the US is even intentionally stirring the pot releasing obvious AI photos of himself walking with aliens while the government is releasing "evidence" that isn't any more credible than the stuff you find on Reddit and Youtube. A significant number of Americans already believe the government has confirmed the existence of aliens and UFOs on Earth thanks to "whistleblowers" like Grusch and the Tic-Tac stuff, even though the government's official position has never changed, and most of that "evidence" has been debunked, and Grusch et.al have yet to provide anything conclusive.
Far from going away, the whole thing has become normalized and I feel like we're going to reach the point where more people believe in interdimensional space elves than believe humans ever landed on the moon by the end of the decade.
Most common video seems to be a balloon filmed sideways from a fast flying aircraft, with parallax giving the illusion that the balloon moves very fast.
> If only, but no. Thanks to equally ubiquitous video and image editing and now AI and the profit potential of social media there are more such claims than anyone can count.
That's a more recent development. UFO sightings surge when the technology aligns with them: when the camera is blurry or you're not expected to carry one, or when faking with editing or AI is trivial. But there was a long middle when everyone had access to phone cameras yet editing/faking was hard, and UFO sightings by civilians became rare.
Same with the Loch Ness monster, the Yeti, Big Foot, etc. These monsters were apparently very shy during the phone camera era, but I bet you with AI image editing they will overcome their shyness!
Building the pyramids is the easy part. You need food, labor, stone. Designing the bastards is where the true mystery lies for me. And it doesn't seem that we have very good history on the design process. Unlike the building one.
Design in what way? A pyramid is the natural shape any pile of stuff takes when created because it is the most stable.
Heck, when just playing in the dirt or sand as a little kid you sort of instinctually learn that.
So once you have that, what is left to learn of the design process? Cutting and assembly.
Cutting we figured out already, with copper tools you can use the desert sand as a diamond abrasive (has microscopic diamonds in it). Put sand on block, move a saw blade with no teeth back and forth.
Assembly: we do have some idea of the assembly process, but yes we will never know for certain because it was either taken for granted in that age (like we take for granted how to use modern technology), or written on parchment long since destroyed.
Design: we have countless examples in the region of pre-giza pyramids that have different height/width ratios. And how the older ones are less stable due to having more height to width (taller than wide).
So yeah, designing really is do it at smaller scale. Heck hand held bricks would give you a lot of practice and design reference when building the real thing, for a fraction of the cost.
And you missed the most obvious thing we learned, (a) they had a ton of time (no YouTube), (b) they built it in the off-season and paid the workers in food - not slaves. It was a public works project, that was used to keep the citizens fed.