Comments by "Emir" (@irongron) on "Top Astrophysicist: "Aliens may have contacted us, but we don't know how to call back."" video.

  1. The distances to traverse the stars or galaxies or universe are way too vast, even at 1/4 light speed. Fermi's "paradox" isn't a paradox IMHO, it's just a practical aspect of the vastness of space and the limitations on high speed travel (forget all that warp BS you see on Star Trek or sci-fi shows). Any exo-civilisation would be lucky to have anti-matter drives and half light speed craft. (at the speed of light your mass is infinite, an impossible target, let alone even half light speed, maybe 1/4 is more feasable). Why would they even have the choice to go explore exo-planets over vast inter-stellar distances ?  This plant or that planet, it seems irrelevant. I've been reading about this stuff since I was a kid. I am a space guy, unlike you Jordan. Decent guest, she didn't tell me anything I didn't already know, but she waved her hands around way too much (she became really annoying after a while), a non-video radio only version of this would have been much better.
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