Comments by "Jim Luebke" (@jimluebke3869) on "Immortality, Religion, \u0026 the Search for Life | Dr. David Kipping | EP 463" video.

  1. The reason the fine-tuning argument is powerful, is that it would be completely impossible to adapt to circumstances where the constants were not tuned as they are. Stars would not form. Galaxies would not form. Molecules would not form. It's a game that's not just difficult to play or would have to be adapted to, but is impossible to play.
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  2. "We commonly find mini-Neptunes, hot Jupiters, and compact multiple rocky systems" Are these simply the easiest to detect?
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  3. "We want to be remembered" The future is important because it is a vast expanse of todays. If todays don't matter, then neither do tomorrows, but if tomorrows matter, then so do todays. Same reasoning with future generations. If you matter, then children matter. If children don't matter, then neither do we.
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  4. "Dyson spheres are unstable" This less all-encompassing Ringworld (dreamed up by SciFi author Larry Niven) was criticized for this as well, with mobs of science fiction fans marching through at least one convention chanting, "The Ringworld is unstable! The Ringworld is unstable!" I miss those days, when I think about what SciFi fandom has become.
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  5. It's very unlikely Mars ever had an active hydrosphere (i.e., a water cycle - evaporation, condensation, precipitation) because the folds of terrain do not show a watershed pattern -- the treelike shape of tributary streams and rivers -- that we see even in arid places on Earth.
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  6.  @ldd4043  Bless you for reading a comment that's more than a dozen words long! =) If you could please find the time to find and upvote my post about Drake's Equation, maybe we could get the attention of the Daily Wire folks about that systematic investigation of the probability of life in the cosmos.
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  7. Wikipedia has The Drake Equation well enough here: N = R∗ ⋅ fp ⋅ ne ⋅ fl ⋅ fi ⋅ fc ⋅ L where N = the number of civilizations in the Milky Way galaxy with which communication might be possible (i.e. which are on the current past light cone); and R∗ = the average rate of star formation in our Galaxy. fp = the fraction of those stars that have planets. ne = the average number of planets that can potentially support life per star that has planets. fl = the fraction of planets that could support life that actually develop life at some point. fi = the fraction of planets with life that go on to develop intelligent life (civilizations). fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space. L = the length of time for which such civilizations release detectable signals into space.[6][7]
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  8. JayWeST is usually how we referred to it.
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  9. "Life would not survive greater insolation" Really? More free energy would not ultimately give life a boost? Remember, the regions of the planet with the most insolation is the equator, and it has the most life. It's the presence or absence of water that makes the most difference, not the temperature. The biomass of the tropical forests and boreal forests are incredible.
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  10. "Mars lost its magnetic field" as its core cooled, because it's a smaller planet than Earth "and so lost its atmosphere" at least the liquid water in the atmosphere, and the lack of magnetic field allowed cosmic radiation to break up water (H2O) into OH and H, with the H (hydrogen) would escape into space.
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  11. "If you fell into the black hole you could be reconstructed from the Hawking radiation" I think the data rate falling in exceeds the data rate coming out. This can be calculated. Also with the burned book -- reversing entropy takes a whole lot of work, which just increases entropy elsewhere.
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