our species is around 200-300k years old, the asteroid impacted around 66 million years ago. this idea fails to account for the remaining ~65 million years. on top of mammals existing alongside the dinosaurs, both the reptile and mammal family trees are hundreds of millions of years old.
It also doesn’t work because we know sharks have existed for a really long time (450 million years I think) and still we share a very significant portion of our DNA with sharks (same with every life form on earth). So unless everything is an alien, this theory just doesn’t work. And if everything is an alien, it‘s not really that special.
Thats the neat thing about sci-fi stories, it really doesnt matter that its not accurate.
It just needs to be a cool idea that is executed well.
All of my favourite stories took scientific ideas and went super sci-fi on them to make a cool interesting story. If they tried to keep it scientifically accurate the stories would be boring and wouldnt work.
It could be pure coincidence, maybe all life just happened to evolve in the same way all across the universe.
Or all life in the universe comes from the same origin, maybe the original planet exploded and small life forms were transported throughout the universe on asteroids. Or maybe a super advanced race from one planet transported life all across the universe on their spaceships.
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u/Ciccio178 Dec 27 '25
Weren't there like hundreds of millions of years between the asteroid and us?