• 2 Posts
  • 46 Comments
Joined 3 years ago
cake
Cake day: April 27th, 2023

help-circle

  • SorteKanin@feddit.dktome_irl@lemmy.worldme_irl
    link
    fedilink
    arrow-up
    0
    ·
    6 days ago

    Isn’t retirement a fairly modern idea? Didn’t people in relatively recent times (say, 100 years ago) just work till they died or lived off the alms of their relatives? We got an economic boom for the boomers which allowed pensions as an invention and they used it heavily, but now the economic situation is completely different so the new generation does not stand to have the same retirement luxury.

    I am by no means a historical or economic expert so I may be completely wrong.











  • A third idea is that sunlight is much, much brighter than most indoor artificial light, and the lack of this very bright light causes some sort of problem for the developing eye. Maybe the brightness of the sun is a sort of “calibration” method for the eye and when it doesn’t get that really bright sunlight, the development of the eye goes out of whack.

    So is it vitamin D, or far-away views or bright sunlight? I’ve heard all these theories before but I’m not sure which is it. Does the meta analysis say anything about which effect is most likely the cause? I mean could we “fix” this by going outside to view things far away, or should we just take vitamin D supplements, or should we have much brighter indoor lighting? I’d love to know.








  • But in any forseeable timeline

    500 years was just a number I threw out there as “clearly beyond any forseeable time”. It could be 200 years, 1000 years, maybe never. Point is just that it’s completely wrong to think that we just need to land on the moon or on Mars and then we’re an “interplanetary species” and if Earth goes, we have a backup plan.