Liron Shapira is a startup founder, angel investor, and host of Doom Debates, a podcast and YouTube show built to raise mainstream awareness of human extinction risk from artificial superintelligence. He is the cofounder and CEO of Relationship Hero, a Y Combinator-backed coaching service that has guided more than 100,000 clients, and was previously cofounder and CTO of the app-search company Quixey. A fixture of the online rationalist community, he is known for putting his probability of AI-caused doom near 50% by 2050, for his sharp public critiques of crypto and web3, and for turning a $10,000 early bet on Coinbase into roughly $6 million while still calling cryptocurrency essentially worthless.
Michael Martinez is the CEO and co-founder of FunCraft, a San Francisco-based mobile game studio he launched in 2019 with longtime collaborator Jason McGuirk. A Zynga and Electronic Arts veteran who previously founded Juicebox Games, Martinez built FunCraft around a deliberately unglamorous bet: making casual word and puzzle games that become daily rituals rather than chasing trends. With a fully remote team of roughly 15-21 people, the studio crossed 7 million installs and more than $15 million in revenue in its first five years on the strength of titles like Wordgrams, Word Yatzy and Merge Kingdoms. Martinez is a vocal skeptic of gaming hype cycles, publicly stepping back from Web3 with the line that blockchain was 'a solution in search of a problem,' and an evangelist for testing everything and embracing the unsexy.