Hardware

Training and running frontier AI models generates thermal densities that shatter the physical limits of traditional air cooling. Submer, founded in Barcelona by Daniel Pope and Pol Valls, submerges servers in biodegradable dielectric fluids, achieving a record-breaking PUE of 1.03. We break down its technology, funding rounds, and why it is an indispensable physical pillar in the race toward AGI.

Almost every Hollywood production about technology makes the same unforgivable mistake: reducing computing to neon-green terminal screens and hackers furiously typing with one hand. ‘Halt and Catch Fire’ did the opposite: it captured the smell of burnt solder, the agony of reverse-engineering a BIOS, technical debt, and the profound human cost of innovation.