All of Mikola Lysenko's Comments + Replies

That's a great link, thanks!

Though it doesn't really address the point I made, they do briefly mention it:

> Interestingly, diamond has the highest known oxidative chemical storage density because it has the highest atom number (and bond) density per unit volume. Organic materials store less energy per unit volume, from ~3 times less than diamond for cholesterol, to ~5 times less for vegetable protein, to ~10–12 times less for amino acids and wood ...

> Since replibots must build energy-rich product structures (e.g. diamondoid) by consuming r... (read more)

It's good to hear from an actual expert on this subject. I've also been quite skeptical of the diamondoid nanobot apocalypse on feasibility grounds (though I am still generally worried about AI, this specific foom scenario seems very implausible to me).

Maybe you could also help answer some other questions I have about the scalability of nanomanufacturing.  Specifically, wouldn't the energy involved in assembling nanostructures be much much greater than snapping together ready made proteins/nucleic acids to build proteins/cells?  I am not convince... (read more)

3MichaelStJules
Is 1% of the atmosphere way more than necessary to kill everything near the surface by attacking it?
2avturchin
Based on you numbers, it would require around 10^26 J to convert all CO2 and this will take 10^9 seconds =30 years.  I like your argument anyway, as it clear that quick solar-powered diamond apocalypses is unfeasible. But if AI kills people first and moves its computations into diamonds, it will have plenty of time.
9PeterMcCluskey
Freitas' paper on ecophagy has a good analysis of these issues.

This is the same kind of thing as the Black-Scholes model for options pricing.  As a prediction with a finite time horizon approaches the probability of it updating to a known value converges.  In finance people use this to price derivatives like options contracts, but the same principle should apply to any information.

I think you can probably put some numbers on the ideas in this post using roughly the same sort of analysis.