On Sunday, 25 builders from nine countries arrived in Buenos Aires for the World Build 2 residential sprint. Across seven days, founders move from orientation to investment‑ready pitches through a mix of technical deep dives, growth strategy workshops, and real‑world user research. Day 1 & 2 programming included a World App roadmap preview with Andy Wang (Senior Engineering Manager, World App at Tools for Humanity), blitzscaling growth with Martín Mazza (Regional General Manager LATAM, Tools for Humanity), and an advanced UX design workshop with FWB member Kitty Vo. The week culminates with a live Demo Day to a panel of judges including @blockchaincap @fwbtweets @circle @protocollabs @socialgraphvc @nascent and @worldcoinfnd @world_chain_ @worldcoin