Comments by "Jim Mcneal" (@jimmcneal5292) on "Astrum" channel.

  1. 4 light years however is not very far. With the technology not far above the current one(FFRE) we would be able to send the survey/terraforming ship on such distances. Human travel will require warp though
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  2. I think that the temperature, water and stability of the star are the most important ones. Tidal lock can be mitigated with atmosphere and oxygen actually is not needed, as long as there is water we can send the anaerobic bacteria and they will create oxygen(actually such "terraforming"/ biosphere creation missions would probably be more of a norm rather than an execption)
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  3. The graph ag 10:35 is wrong, however, and contradicts confirmed historic facts. For example that at Roman times wine grapes were successfully grown in Scotland, which is still impossible now due to it being too cold there. There were other instaces too all across the globe, including mandarins in the north China. It doesn't of course mean that there's no human-caused(and quite rapid) global warming and that we don't need to limit emissions. But it does mean that climate WAS warmer than now during some periods of human history and we have some amount of time that we can use to fix the problem. Another rarely mentioned thing is that basically all excessive CO2 can be captured back by plants/phytoplankton, increasing biomass.
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  4. I doubt lead suits will work against bone atrophy
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  5.  @robo5013  with time humanity invents new types of propulsion, on top of that, the speeds we can travel increase roughly exponentially. My estimate is that we will break the light barrier in 500-600 years, and from there our expansion/colonization of the universe will start
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  6.  @WilliamFord972  those were launched with a cheap simple chemical rocket engines
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  7. Alien stuff is ridiculous, but the dark comet thing is very interesting, amazing to see a new classification of space objects appear as we live
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  8.  @zaeemchogle8219  everything below light speed is possible for sure. Light speed is possible for photons(actually the only speed possible for them). For objects with mass light speed and above is theoretically possible, but requires negative mass energy density, which we don't know how to create
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  9.  @hedgehog3180  not really a problem, most likely people still would leave till 60s at least, and it's enough to leave all the offspring
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  10.  @robo5013  yes but I doubt planets that have less than 10% of our Sun's light are considered as colonization candidates
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  11.  @coolraygaming  remember that newton lived around 300 years ago
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  12.  @miguellopes2452  because aliens almost certainly don't exist
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  13. ​ @PsRohrbaugh  not with reusing waste and breeder reactors. Not to mention fusion energy
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  14. Not really. Once formed, civilization is generally quite resistant to climate change. We are just probably the first
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  15. Yes, me too. As someone who's from the north of Russia, with proper clothes I feel comfortable even in –40°C, but if it's above 25°C I die without air conditioner🥵
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  16.  @100percentSNAFU  it depends. If atmosphere can compensate and redistribute heat, then it's ok. On the other hand, atmosphere itself can't actually be easily fixed with tech, if it's toxic or there's none, the planet can't be colonized
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  17.  @AlexArthur94  project starshot is close to useless while being extremely expensive
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  18.  @alexturnbackthearmy1907  light doesn't have a mass. Only momentum and energy
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  19.  @PhoenyxuzPrimax  ok, so? That's just numbers. The only one who needs touch grass and learn how to make arguments is you, lol
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