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Joined 1 year ago
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Cake day: August 8th, 2023

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  • I imagine we can agree no American president has been ideal? Some of the presidents who have given us the most progress in important areas like welfare, civil rights, and environmental protections have also been war criminals. Roosevelt, Kennedy/LBJ, Obama, etc. Imagine where we’d be if no one voted for the lesser evil in those elections, held firm and didn’t vote for the president who would set up concentration camps, or keep us in wars in Asia and the middle east.

    Throwing away your vote got us presidents like GWB and Trump. Stalled progress for decades. Evil supreme court justices. In fact, the most underrated job of the president is picking supreme court justices, since the court has made itself the single most powerful institution in the country.

    How about you vote for the most potential for progress?




  • I think they mean the “superheavy” (somehow a more stupid name than starship) booster rocket is the most powerful. I’m pretty sure by thrust metrics it is. It’s just that the superheavy-starship system can’t put much up in LEO because the starship is huge and heavy on its own.

    If you put an expendable second stage on top of the superheavy booster instead of a starship it could put a lot more up to LEO.




  • I’d argue that it wasn’t really “net-positive”. Certainly it was a positive energy gain, but it took way more energy to create the fusion than just the input energy. There is a ton of efficiency losses to create the input energy, which is defined by the energy in the laser beam that triggers the fusion. A lot of energy is also used to maintain confinement during the reaction.

    I would like the term net positive to be more inclusive of all of the recurring energy used to support the fusion. It’s fair to not include the energy used to construct the machines, but anything that would need to be put in to a fusion plant each reaction to get out energy should be considered.