Prediction markets are event derivatives, not a new stock market
A prediction-market contract is usually tied to a defined event and resolves to a fixed amount when the outcome is known. A Yes contract purchased for $0.60 might settle at $1 if the event occurs or $0 if it does not. The price can be read as an implied probability only after accounting for fees, spreads, liquidity, and market structure.
That makes event contracts useful for speculation, forecasting, and sometimes hedging, but they do not create ownership in a productive asset. There is no retained earnings stream or long-term compounding engine. The buyer is taking a time-bounded view on a rule-defined outcome and can lose the full entry cost.