Computation is invisible, so the shelf prints it: every cabinet throws a fan of heat that sweeps the frost clear, and the swept ground is the only picture of the thought.
An artistic imagining, not existing hardware: a computing shelf parked on the night side of Mercury, printed as one blown up halftone screen, with its power walking in over the terminator from the sunlit side and its waste heat leaving twice over, upward through canted radiator panels and forward across the frost. A night on Mercury lasts about 88 Earth days and the unlit surface falls to roughly 100 K, and since a radiator sheds heat faster into a colder sky, the cold is the real reason to put a thinking machine out here.Image: poweringspace.com. Artistic imagining.