BillTre's latest activity

An unstated assumption in the line of discussion is that they exist simultaneously/now. Given that humans have only had the ability to...

so at best it would be like condemning yourself and your unborn generations to live out their lives on a cruise ship but with fake food...

Civilizations traveling great distances and colonizing new systems, isn't that panspermia? Panspermia is pretty much ruled out; it's...

I don't see any evidence that this is more than sci-fi fantasy. Yes there are (technological barriers). There is no technology that...

I guess it depends on how the Sun-like stars are distributed. The current estimate seems to be about 5-10 billion Earth-like planets...

I think the Fermi paradox is different than what has been stated here. I think it goes like this: (1) We can already envision our...

My simple calc was 60k stars within 100ly out of 100 billion potential, but that would have an upper limit of around a million...

Even then - with a 100LY limit for communication that is 60k stars, so there could be tens of millions of technological civilizations in...

You're presuming there wasn't another start this morning only to be eaten for lunch.

Another point I would make is that saying that the observable universe is "teeming with life" is not a very useful conclusion. If, say...

I have come to feel that thermodynamics rules in many of these evolutionary events.

Interesting approach, and definitely good candidate for something that can be turned into a detection technique. I feel like it is kind...

With intelligence goes a ladder of exploitable energy resources to get to a technological civilization. This would include plants and...

Yes. Many of which do not apply to this topic of discussion. This is about exo-biology. Competent scientists are not looking at...