Buterin Sounds Alarm on Prediction Markets He Helped Build

Ethereum co-founder says prediction markets are converging on an 'unhealthy product market fit' despite backing Polymarket.

Buterin Sounds Alarm on Prediction Markets He Helped Build

Vitalik Buterin is getting cold feet about prediction markets — the very thing he helped champion.

The Ethereum co-founder, who backed Polymarket, publicly warned that prediction markets are "over-converging to an unhealthy product market fit." That's a polite way of saying the space might be heading somewhere he doesn't love.

It's a striking admission from someone whose support helped legitimize the sector. Polymarket exploded in popularity as a go-to platform for betting on real-world outcomes, from elections to economic indicators. But Buterin now sees the trajectory as problematic.

He didn't mince words. The "starting to worry" framing suggests this isn't a passing concern — it's a shift in thinking from one of crypto's most influential voices.

When the guy who backed the rocket starts questioning the flight path, the industry should probably pay attention.