On September 27, 2026, Apollo chief economist Torsten Slock published a research note warning that household AI agents optimizing cash returns could drain the cheap deposits banks lend against, risking a systemic banking crisis. Slock has since said he does not expect an agentic bank run, though on-chain deposit migration keeps the risk live. The FT estimates AI agents could cost banks $500 billion by winning better savings rates. What remains open is whether agent adoption would move deposits fast enough to matter, and whether the inertia the note depends on survives contact with the tools.