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Cake day: July 10th, 2023

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  • The technology plans for these fuel cells aren’t “for now”. They’re for a future where we’ve hopefully already decarbonized most of the electric grid, as doing so is way more important than decarbonizing aviation. Converting fleets of airplanes to electric is a long process that will probably not be started for a while yet while there are more important carbon emission sources to tackle (aviation is only 2-3% of the emissions right now).






  • Knowing how hard something is can be a larger barrier than not knowing. But the main barrier preventing space colonies is the same thing preventing ocean colonies — “Why?”. What motivation is there to settle space? Exploration and experimentation can be done for motivation of seeing if we can, but settling needs known payoff both for the settlers and the funders.

    Asteroid mining is the only current suggested motivation for such a thing. And it’s very possible that by the time we figure out asteroid capture, we won’t need humans present for that work.