Lightning wrote:I hope I'm still around to see the day that a probe is sent to Europa to burrow thru the ice into the ocean underneath it.
Oh, great, the probe will be contaminated with a few earth viruses and we will wipe out our nearest neighbors before we even meet them.
Crow Horse wrote:It would be the height of arrogance to believe that we are alone
There’s an argument that goes something like this; I won’t have the actual numbers right, but you get the point:
Assume that one single civilization develops the technology to traverse interstellar space and colonize other stars, and does so. Assume that every million years each colony spawns another, thereby doubling the number of stars colonized. After a couple billion years, the number of colonies will be 2 to the 2000th power, a god-awful big number, so they should be here by now. If they are not here already, it is because they don’t exist.