Öö Tiib wrote:
> Science does not work like that. From sample of one life
> we can not calculate likelihood of other life.
"Likelihood" is in regards to commonality.
Once you establish something as possible, you need a reason
for it to not happen else it will happen.
> From
> sample of one sentient specie we can not calculate
> likelihood of other such species.
Irrelevant, because that's in terms of frequency and the
universe is so large if defies human understanding.
Go one. Decide that it's one in a trillion stars where
intelligent life arises... out of how many stars?
200,000,000,000,000,000,000,000
So no matter how little you want to make the number, there's
still ridiculous numbers.
>Also we do not know
> average life expectancy of civilizations.
Utterly irrelevant. As I pointed out, but your lack of comprehension
and retention prevents you from considering, we are likely on the
receiving end of extinct civilizations right now.
> Ours is rather
> young and rather suicidal
Lol! You're knee deep in baseless speculation.
Homo is millions of years old. Humans of 30k years ago were
just as intelligent as we are today, and possibly more so.
> All true but so far we have not found any exoplanets with
> clear biosignatures.
Wrong. We've actually found biosignatures within our own
solar system. Yes, on Mars but elsewhere as well.
The most recent claim is Venus, of course.
> > If aliens are looking, and they're at least as advanced as
> > we are, they can find out. If they're 50 years ahead of us,
> > they found us already. If they're a thousand years ahead
> > of us, they may have already launched probes in our
> > direction.
> >
> You mean they were as advanced as us, saw us, sent
> probes to us, but after that their home stellar system
> lost its biosignatures so we do not see them anymore?
No. I don't mean that.
We're only now searching. James Webb has been at it
like a year and a half, but they certainly weren't in a good
position yet, not right away.
And space is an extremely low priority.
Look. The Ukraine is of zero strategic and economic
importance to the United States, and already Biden has
thrown about as much money at them as NASA and all
of NASA's programs.
In 2020 we spent like $4 trillion, at least, on an artificial
economic collapse that pretty much everyone admits
was utterly useless.
Our priorities suck.
> We do not always do what we theoretically could.
It's about priorities. We have incredibly shitty priorities.
If we assume that at least some civilizations have
better, smatter priorities, they could be here. I don't it.
But they know we're here.
> Even
> for to search biosignatures, nothing to talk of sending
> probes.
There's people who claim that if we had pumped the
funding into the nuclear engines that Carl Sagan
famously talked about, we'd be, at the most, a few
years away from arriving at Proxima Centauri. Meaning,
the craft would have just about arrived.
Again, our priorities suck out loud.
> AFAIK James Webb Space Telescope
> is not designed to search for biosignatures
It is.
> Accepting something without any evidence is belief.
Like your baseless claims here.
the JWST searching for life by analyzing light. It's
not collecting samples of an atmosphere, it's analyzing
what light is being absorbed, what is passing through...
I've already posted cites.
These techniques were first used on the planet earth,
from space, "Proving" that life exists here...
Just Google up Spectrum Analysis and have a day.
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