Earlier quoted context omitted.
better, lighter-weight computing stacks have been a huge boost; that's what made cubesats possible. but the much bigger deal is the dramatic drop in launch costs driven by spacex, even though so far that's only a factor of 3.4 https://ourworldindata.org/grapher/cost-space-launches-low-e... with lightweight computers driven by the cellphone industry, it became possible for a small team or even individual to launch a l…
Oh I don't dispute the fact that reusable vehicles are an incredible leap forward. Anything that manages to launch significantly more payload cheaper and more frequently is awesome. That said, things like reusability work at all because of precision control which, as far as I can tell, is near-impossible to do in a lightweight package without the cooperation of a compute stack. Same for other kinds of soft landings a…
what kinds of new materials are they using in the falcon rockets, do you know?
quite aside from the weight, latency is extremely important to precision control; a factor of 10 in latency may be equivalent to 100× or 1000× more sensor error. so, even if weight was no object and you could mount a dozen 5-tonne 10-megaflops cdc 6600 supercomputers on your reusable rocket as the guidance system, you might still be better off with a 100-megaflops high-end microcontroller, just because it can respond more rapidly to perturbations of homeostasis