Silicon Valley loves young founders. Until it doesn’t.

For Arlan Rakhmetzhanov, 19, there is no middle ground. Either he builds a company as valuable as Google, he says, or he fails and ends up on the streets. He started coding at 15 in his native Kazakhstan, completed a couple of summer programs in San Francisco, and cold-DM’ed every Y Combinator founder he could find on LinkedIn until one gave him an angel check for his first company at age 17. That company, now the YC-backed Nozomio, is an API index for AI agents — a tool that helps AI agents find and use software services — and has raised more than $6 million in funding to date. “I either win or lose, and…