[ghaff]

How is it different from the stock market?

[ars]

Stocks are linked to entities that perform economic activity, i.e. make a profit, and share that profit. i.e. everyone can win.

Predictions markets are just bets: one person wins, one loses.

[criddell]

Options (especially 0DTE options) are a lot like sports betting.

[ghaff]

And GameStop would probably like a minute (or maybe not) to discuss the tenuous connection between some underlying economic valuations and stock price.

Yes, the stock market is underpinned by real economic activity. But, be real, there's a lot of essentially betting involved too.