• July 12, 2021, 2:07 a.m.

    Isaac, being the unrepentant optimist that he is, often talks about longer life spans, life extension tech, long lived aliens, etc., both committing specific episodes to these topics and mentioning them in passing in other episodes.

    But what about the opposite? The reasons and implications of possibly shorter life spans deserve attention as well, don't they? For one, short lived aliens appear in some space opera settings. But there is a number of more or less probable scenarios in which the mean life expectancy of humans in the future may also go down (to ~60 years, I think, but maybe even lower). Some of these scenarios involve utopian/dystopian developments on Earth itself, some others may be predicated on environmental factors of space exploration such as radiation, low gravity, etc. Due to a combination of these factors something like a scheduled and/or assisted suicide at the onset of senescence may even become a cultural norm...

    I think it would be interesting if Isaac made a couple of episodes on this. Or have I missed something?

  • July 12, 2021, 6:10 a.m.

    What pops into my head when contemplating would could lead to average lower life spans would be antibiotic resistance,

  • July 31, 2021, 1:02 a.m.

    Short lived aliens vs long lived aliens

    I would be hesitant to say short lived is more likely than long lived if only because a society would have to be pretty unusual if it didn’t want to maximize its lifespan. That still might not be a human lifespan but a species doubling its lifespan would be quite impressive.

    Isaac’s Opinion

    I am pretty sure there is a video from the last year or so where he said he doesn’t think there’s going to be a significant increase in lifespan in the near future. A lot of people making it to 100 maybe but not say 130, and maybe there will be noticable increases in the average quality of life in those years. He does note that aging and death is something we know less about than most are aware of, and so it is possible there is some magic target or magic bullet that could be a breakthrough to give everyone a 200 year or more lifespan though he doesn’t think it likely. At least that’s it as best as I can remember.

    My personal thought is that there’s no good reason I’ve seen that becoming elderly or dying from old age or conditions strongly linked with age should be inevitable. Some animals on earth don’t seem to age past a certain point and only seem to die accidental deaths so to speak. We know some whale species do not seem to have any issues living well past 100. That we don’t think becoming elderly and dying of old age is strange is only because it is so very common, but the ultimate way for your genetic material to preserve and propagate itself would be to not age so it should be strange that it is built to do the exact opposite.

  • July 31, 2021, 1:03 a.m.