Last week, a few posts about a so-called virtual “embodied fly” tore through X, boosted by AI hype accounts and excited commenters who didn’t seem to understand what it was they were excited about. The videos came from San Francisco-based Eon Systems, which says it’s working toward “digital human intelligence” and claims it wants to build a full digital emulation of a mouse brain within the next two years — a timeline that is, to put it generously, ambitious. Cofounder Alexander Wissner-Gross