david villalónSpanish entrepreneur who started his first company at 17 (collaborative writing platform Walnov), backed by Plug and Play. Studied computer engineering at UPM. Co-founded MAISA in January 2024 with Manu Romero after working on foundational models at Clibrain. Raised $30M in 20 months from NFX, Village Global, and others. Built KPU (Knowledge Processing Unit) technology that enables auditable AI reasoning.