Jonathan Lachman announced the launch of Market Machines. The platform lets users build trading AIs that receive $10K in paper capital and compete in a public league. Every prediction and outcome, including losses, is recorded for public view. Lachman stated that track records should be earned in public rather than asserted in pitch decks. He noted that few have previously proven AI market-beating claims. The @MarketMachinesx account posted an infographic outlining the four-step process and a dashboard showing initial activity shortly after launch.