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SodaPopinski comments on Astrobiology III: Why Earth? - Less Wrong Discussion

18 Post author: CellBioGuy 04 October 2016 09:59PM

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Comment author: CellBioGuy 04 October 2016 10:00:49PM *  11 points [-]

Advice solicited. Topics of interest I have lined up for upcoming posts include:

  • The history of life on Earth and its important developments
  • The nature of the last universal common ancestor (REALLY good new research on this just came out)
  • The origin of life and the different schools of thought on it
  • Another exploration of time in which I go over a paper that came out this summer that basically did exactly what I did a few months earlier with my "Space and Time Part II" calculations of our point in star and planet order that showed we are not early and are right around when you would expect to find the average biosphere, but extended it to types of stars and their lifetimes in a way I think I can improve upon.
  • My thoughs on how and why SETI has been sidetracked away from activities that are more likely to be productive towards activities that are all but doomed to fail, with a few theoretical case studies
  • My thoughts on how the Fermi paradox / 'great filter' is an ill-posed concept
  • Interesting recent research on the apparent evolutionary prerequisites for primate intelligence

Any thoughts on which of these are of particular interest, or other ideas to delve into?

Comment author: SodaPopinski 06 October 2016 11:52:27AM 3 points [-]

CellBioGuy all your astrobiology posts are great I'd be happy to read all of those. This may be off the astrobiology topic but I would love to see a post with your opinion on the foom question. For example do you agree with Gwern's post about there not being complexity limitations preventing runaway self-improving agents?

Comment author: CellBioGuy 07 October 2016 10:54:35PM *  2 points [-]

I generally have very low confidence in singulatarian ideas of any stripe, 'foom' or non. Partially for sociological analysis-of-the-origin-of-singulatarian-and-related-ideas reasons. Partially for astrobiological reasons relating to the fact that nothing has ever consumed a star system or sent self replicating anythings between stars and my impression of the range of possible outcomes of intelligent living things that are not extinction or controlling the universe and the possible frequencies of things something like us. Partially because I think that many people everywhere misattribute the causes of recent changes to the world and where they are going and have short time horizons. Partially because I am pretty sure that diminishing returns applies to absolutely everything in this world aside from black hole growth.

I can't say I've read Gwern's analysis of computational complexity, but I do note that in the messy complicated poorly-sampled real world you can very very seldom actually KNOW enough to predict much of a lot of types of events with great precision.

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