Forbes just released the 2025 list of self-made billionaires under 30, and there's an interesting phenomenon — among the top 13, 9 are working on AI, while the remaining 4 are all focused on prediction markets.

These four are respectively a 27-year-old founder of Polymarket, two 29-year-old co-founders of Kalshi, and a 29-year-old co-founder of Stake.

It seems quite impressive. While the entire venture capital world is chasing the AI trend, these young entrepreneurs are making a name for themselves in the prediction market field — indicating that the potential of this track has indeed been underestimated. AI is hot, but the growth rate in prediction markets also seems not to be underestimated.