PeroK's latest activity
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Thank you very much for the suggestion. I will go through these. It's been very touching seeing the effect he had on this community by... -
PeroK replied to the thread Undergrad My basic understanding of set theory.That's a description, not a definition. There is no single concept of infinity in mathematics. We might first encounter infinity in...
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PeroK replied to the thread Alien life, probabilities, and interstellar propagation of human life.What's the longest you have ever lived like that? Even if we do build a "fusion drive", there is the problem of the rocket equation...
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PeroK reacted to phyzguy's post in the thread Alien life, probabilities, and interstellar propagation of human life with
Skeptical.
(1) Generation ships need not be "horribly inhumane". A space habitat hundreds of meters in diameter could be quite a pleasant place to... -
PeroK reacted to DaveC426913's post in the thread Alien life, probabilities, and interstellar propagation of human life with Skeptical.
Possibly, although I think natural evolution would be drastically reduced. Our medical technology would correct or compensate for most...
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PeroK reacted to russ_watters's post in the thread Alien life, probabilities, and interstellar propagation of human life with
Like.
An unstated assumption in the line of discussion is that they exist simultaneously/now. Given that humans have only had the ability to... -
PeroK reacted to DaveC426913's post in the thread Alien life, probabilities, and interstellar propagation of human life with Skeptical.
Why would you need any more than a smidge of gravity? Say, 20%? Just enough to make sure things don't float around in the corridors...
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PeroK reacted to BWV's post in the thread Alien life, probabilities, and interstellar propagation of human life with Like.
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...
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PeroK reacted to BWV's post in the thread Alien life, probabilities, and interstellar propagation of human life with Like.
Yes, although self-replicating robot probes rather than generation ships is the typical formulation. However generation ships are...
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PeroK reacted to BWV's post in the thread Alien life, probabilities, and interstellar propagation of human life with Like.
Even then - with a 100LY limit for communication that is 60k stars, so there could be tens of millions of technological civilizations in...
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PeroK replied to the thread Alien life, probabilities, and interstellar propagation of human life.I don't see any evidence that this is more than sci-fi fantasy. Yes there are (technological barriers). There is no technology that...
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PeroK reacted to phyzguy's post in the thread Alien life, probabilities, and interstellar propagation of human life with Skeptical.
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...
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PeroK replied to the thread Alien life, probabilities, and interstellar propagation of human life.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...
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PeroK reacted to BWV's post in the thread Alien life, probabilities, and interstellar propagation of human life with Like.
My simple calc was 60k stars within 100ly out of 100 billion potential, but that would have an upper limit of around a million...
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PeroK replied to the thread Undergrad My basic understanding of set theory.To understand the concept of infinity in mathematics, you could start here: https://en.wikipedia.org/wiki/Infinity