Draviddavid t1_j0yp20t wrote
Reply to comment by TheTimeShrike in Which theory about aliens is the most likely? by [deleted]
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.
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