EvilRayquaza t1_j0yet5t wrote
The one where aliens exist out there yet our presence hasn't nearly reached far enough for them to even know we're here, and vice versa. I wonder if aliens out there ponder the same thing...
soon-it-will-be-2030 t1_j0yfj8j wrote
Even with radio waves, over time they will diminish and just become a fuzzy mess, so yeah I see your point.
Dry_Author8849 t1_j0yn60t wrote
And if you consider time in the equation, we also need to be in the same time frame. One million years before or after and we'll never met. Or a couple of thousand years.
We need to have a second home soon enough...
Draviddavid t1_j0ynvpd wrote
I listened to a podcast the other day that suggested there could have been many intelligent forms on earth before us.
We'd only have to be gone for a few hundred thousand years for there to be no trace of us left and the next intelligent life be none the wiser to our existence previously.
TheTimeShrike t1_j0yonkv wrote
That doesn’t sound right at all. We know about dinosaurs from millions of years ago, I don’t think all evidence of humanity with our ridiculous megastructures and plastic garbage islands the size of states are going to completely disappear anytime soon. But hey, I could be wrong.
Draviddavid t1_j0yp20t wrote
Maybe it was 400 million years. But even that is a pretty short time scale in universe terms.
quadriplegic_cheetah t1_j0yug6l wrote
No really. Thats a pretty substantial amount of time even relative to the time of the Big Bang. Especially when you consider how long it takes for life to form at random.
And even then, after millions of years, an advanced civilization could probably find traces of us on this tiny rock. Even after 100’s of millions of years.
ridgecoyote t1_j0yubkh wrote
One theory is that former tech relied on biological advances rather than material advances.
Optimal-Firefighter9 t1_j0yp813 wrote
We have fossil records of Oculudentavis khaungraae, which is a dinosaur less than three inches long that lived 100 million years ago.
If there were intelligent civilizations before us we would absolutely know.
I_Also_Fix_Jets t1_j0ysgde wrote
That's something that gets me, too. No spear heads or metalwork in the fossil record? No landfills? No burried stone tablets from some random agricultural exchange? Plausible, but the burden of proof is still on the claim makers.
Edit: punctuation
CalligrapherDizzy201 t1_j0yr7rp wrote
Maybe dinosaurs were intelligent. We don’t know.
Optimal-Firefighter9 t1_j0yrj2h wrote
There are a lot of scientific reasons that we do know roughly how smart dinosaurs are, and the answer is the smartest dinosaurs were about as smart as the dumbest modern day birds.
CalligrapherDizzy201 t1_j0yroy3 wrote
That we think we know. We don’t actually. We can only guess.
quadriplegic_cheetah t1_j0yuqiz wrote
By that logic we don’t know anything. Don’t even know what colour shirt you are wearing.
[deleted] OP t1_j0yrwh5 wrote
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Optimal-Firefighter9 t1_j0yxvdu wrote
That's not how science works. "We don't know anything," is some serious r/im14andthisisdeep material.
CalligrapherDizzy201 t1_j0yziy0 wrote
So feel free to share some of these scientific reasons that dinosaurs at best were as smart as the dumbest birds of today. I’ll eagerly wait.
Optimal-Firefighter9 t1_j11a1vc wrote
That falls under the heading of "common knowledge". We learn about it in grade school.
You're the one making the entirely unsupported claim that dinosaurs were an intelligent civilization.
CalligrapherDizzy201 t1_j11bnhl wrote
I didn’t claim that. I claimed we don’t know whether or not they were intelligent and we don’t. How could we? We weren’t there.
[deleted] OP t1_j0yrlfl wrote
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Nospopuli t1_j0yot81 wrote
I love this theory. Blew my mind when I first read it in a book called “The Unearthing”. What was the podcast?
Draviddavid t1_j0ypaut wrote
The podcast was Unexplainable. Great show.
[deleted] OP t1_j0zdbo3 wrote
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JimCon24 t1_j0yqgep wrote
200 Years it took months to contact someone on the other side of the world, now its seconds. We also have the full array of all known human knowledge available to us on the screens were looking at right now.
Wonder what communication is going to look like in 2323 :)
I_Also_Fix_Jets t1_j0ysqf6 wrote
FTL comms? Today's science fiction is tomorrow 's investment opportunity!
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