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We don't know whether Earth went through abiogenesis or was seeded by panspermia.
by sanxiyn 6y ago
We don't know whether Earth went through abiogenesis or was seeded by panspermia.
- akiselev 6y agoIt doesn't matter to the Drake equation except to make it far less pessimistic. Abiogenesis had to happen somewhere for panspermia to occur so if it happened so early in the history of our galaxy to then migrate to our planet, the probability of many such colonizers converging on intelligence goes up drastically. Panspermia might even simplify other parts of the equation, like the probability that we'd coexist in the same time period or in range to detect each other's radio waves.