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this post was submitted on 19 Oct 2025
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TechTakes
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Big brain tech dude got yet another clueless take over at HackerNews etc? Here's the place to vent. Orange site, VC foolishness, all welcome.
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look at the depth of this grifting
a whole One (1!) H100! in space!
note how it mentions nearly absolute fucking nothing about the supporting cast. about storage and networking, about interface capabilities, what kind of programmatic runtimes you could have! none of it. just gonna yeet a sat into space, problem solved! space DCs!
compute! in space! "what do you mean 'compute what'? compute!" I hear, as the jackass rapidly packs up their briefcase and starts edging towards the door. who needs to care about getting data to and from such a device? it'll run Gemma![0] magic!
scan-time "inference", like you'd definitely know every parameter you'd want to query and every result you'd want to have, first-time, at scan! there's a fucking reason this shit gets turned into datasets, and that the tooling around processing it is as extensive as it is.
and, again, this leaves aside all the other practical problems. of which there are many. even just the following ones should make you wince: launch, maintenance, power, heat dissipation (vacuum is an insulator!), repair, (usable) lifetime, radiation. and that's before even touching on the nuances in those, or going further on the list
good god.
I guess the one good bit here is that it isn't the "we're gonna micromachine them in orbit!" bullshit fantasy, but I bet that's not far behind
[0] - "multimodal and wide language support" so literally a Local LLM, but that means it needs... input... and... response... which again goes back to all those pesky "interaction" and "network" and "storage" questions.
@froztbyte "vacuum is an insulator" oh well TIL
@BlueMonday1984
Yeah heat management in space turns out to be pretty fucking hard. You could ask “who knew?!” but there’s that whole space program thing…
I presume that they’re not in fact blind to this fact, mind you. You cannot be doing actual astro tech design without it (your object would never make it to launch - there’s too many blockers that’d stop it), but the properties of heat generation from a H100 are known, and thus whatever they’re applying to deal with it very can’t be lightweight/little
@froztbyte thats one thing but im still interested in the physics of the insulatory effects of the vacuum 👀
@xyhhx @froztbyte “vacuum is an insulator” is what makes a high-quality double-walled thermos high quality — there is no air between the outer and inner walls
@benchase oh shit, i knew that (when shopping for water bottles) but didn't put two and two together
@froztbyte
exactly so :)
no matter means no heat transmission through conduction (=particle motion), only radiation
@Reach_the_man so wait, is not heat a form of energy (or a result thereof)? can energy not dissipate through a vacuum?
or is it that the energy dissipates less effectively when it can't transfer itself *as heat* through a medium?
heat is describing the average kinetic energy of the material's particles, with no contact it can't transfer as kinetic energy, only through photons emitted
@Reach_the_man that clears it up for me! thanks for taking the time to answer