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Comment by stephenbez

2 hours ago

There were other prediction markets like Intrade which was founded in 1999. I had coworkers who made a significant amount of money doing prediction market arbitrage for the 2012 election.

Intrade confuses me. It was illegal to use Intrade as a US citizen; in fact, some people I personally know who were into that scene had to maintain foreign bank accounts.

What has changed, exactly, to make Polymarket legal where Intrade was not?