
There are about 100,000,000,000 stars in this galaxy, and there are about 100,000,000,000 galaxies in the universe. We are small.Bob_the_lost said:*feels tiny again*
Yeah, but we wouldn't bother with looking that far away for life. We'd only be interested in looking at the nearby stars, and they're so much easier to see that we can scan the telescope across the sky and build up a complete picture pretty quickly.8ball said:Aye, but as the photo shows - that's one fuckload of sky to search through . .
Crispy said:Yeah, but we wouldn't bother with looking that far away for life. We'd only be interested in looking at the nearby stars, and they're so much easier to see that we can scan the telescope across the sky and build up a complete picture pretty quickly.
Crispy said:It's a hunch both ways - it doesn't make any difference to anyone else if I reckon there's loads of aliens out there, so I may as well believe it if i makes me happy![]()

Crispy said:There are about 100,000,000,000 stars in this galaxy, and there are about 100,000,000,000 galaxies in the universe. We are small.
Intelligent astronomy?phildwyer said:The universe seems almost designed to demonstrate to us our own physical insignificance, does it not?
kropotkin said:Realisation of species' insignificance --> abandonment of anthropocentrism --> acceptance of scientific materialism == atheism
Welcome dwyer. Some said you'd never make it![]()

Crispy said:Hehe. I guess what I'm more certain about is that we should have the technology to know almost for sure whether there's life out there.
But without any evidence of that, isn't that a bit of a big assumption to make? What makes you so sure that the conditions for the evolution of intelligent life occur even more than once in this galaxy?Crispy said:Well, the telescopes we'll be building over the next 20-40 years will be able to know for sure, and it's my personal belief that life is common enough for there to be some intelligent examples of it close enough to see.

8ball said:<narrows eyes>
Exactly how powerful are these telescopes?
On a related note - there was some statistician who did a calculation based on a very optimistic picture of a universe relatively teeming with intelligent life and he posited that a lot of these aliens would be pretty well obsessed with 'visiting the neighbours' and had warp tech etc etc.
Because it would be a case of them visiting each other a lot as well (rather than all of them just wanting to pop round our gaff all the time), then even with aliens almost everywhere the gaps between visits would be pretty large.
Maybe the last ones to check in on us popped round and just nodded approvingly when they saw us beginning to bang the rocks together.
But there is at least one instance. That means it's legitimate to look at how frequently the base conditions for that occurrence are likely to occur, given what we know about stellar evolution and the formation of planetary systems. There's about one hundred thousand millions of stars in our galaxy, so even if the chances of a (sufficiently) earth like planet are small, there would still be an awful lot of them.In Bloom said:But without any evidence of that, isn't that a bit of a big assumption to make? What makes you so sure that the conditions for the evolution of intelligent life occur even more than once in this galaxy?
Existential negatives are the default postion![]()
fogbat said:Actually, to be picky, not all organisms are equally evolved, depending on how you choose to define it.
Those who have swifter reproductive cycles will have gone through substantially more generations, meaning that more evolution, in terms of random mutations under selective pressure, has taken place.

AnandLeo said:one principal baffling phenomenon for me from the school days was: why the evolution has stopped at the pinnacle of human life :