GPU thermodynamics vs orbital datacenters: why the black-body assumption breaks down
aronchick · x · 2026-11-03
In a debate on orbital datacenter feasibility, aronchick pushes back on a "spherical cow" black-body model of GPU cooling: GPUs have strict temperature bands and need active heat removal or they brick the whole system, and the massive tennis-court-sized solar arrays next to the satellite are genuinely external heat sources — so the physics professors' objection is technically correct.
Related event: Debate Flares Over Feasibility of Space Data Center Cooling(3 posts)→
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