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I was being facetious. The fermi paradox is more robust than a wow signal. It stipule in those billions of year, you just need 1 civilization to emerge, and it would have already conquered the whole galaxy by now. I like that explanation from a Kurzgesaht video I posted way back ( https://lemmy.world/post/6602851 ) : Life just couldnt develop earlier (because it needed billions of year to evolve), and we are one of the first advanced civilization
I suspect even with billion of civilization, the vastness of space make any wow signal miss us most of the time.
Unless that civilization has no impetus to do so, or finds it too challenging.
We don't even know if humans can successfully reproduce on another planet, let alone in space.
Along with this, if even one civilization had built von Neumann probes (which we are literally generations away from being able to do, conservatively) we should have seen them by now.
My belief has always been that if the phenomenon is "real", it's likely this.