The long-held belief that visible, liquid prediction markets would improve collective wisdom and decision-making has been falsified. In practice, platforms like Polymarket and Kalshi are dominated by trading and gambling behavior, not the rigorous epistemic practice of forecasting.

Unlike survey responses, which can be aspirational, prediction markets involve real money. This "skin in the game" forces participants to make more considered predictions, making the aggregate data a more accurate reflection of genuine beliefs and future market direction.

A prediction market's value isn't its empirical track record but its resistance to being easily gamed. If a market were biased by a specific group, savvy investors could profit by betting against that bias. The absence of such easy arbitrage is the strongest signal of its efficiency in aggregating conventional wisdom.

Prediction markets like Kalshi are more accurate than traditional polling because they reflect where people are willing to risk their own money. This 'wisdom of crowds' with skin in the game is a more reliable predictor of outcomes like elections or Federal Reserve rate decisions.

Alex Keeney says there is enough money on prediction platforms that traders now commission their own polling and door-knocking research, including in Maine. That spending creates useful knowledge, but no one has packaged it for non-nerdy election watchers. Eventual exists to distribute that market-generated information to a wider public.

Rather than killing polling, prediction markets make it better. By creating a tradeable market around outcomes, they introduce a strong financial incentive for pollsters and campaigns to be accurate. This shifts focus from commissioning polls that confirm biases to producing data that can actually win trades, improving information quality.

Contrary to the narrative that prediction markets make polling obsolete, they heavily rely on polling data as a fundamental input. Without polls, these markets would be based on "vibes and fundraising numbers," lacking a crucial data-driven foundation.

While framed as a "wisdom of the crowds" tool, prediction markets can be easily manipulated. Wealthy individuals or campaigns can place large bets to create a perception of momentum or inevitability, effectively using the market as a propaganda vehicle to influence public opinion rather than simply reflect it.

Analysis shows prediction market accuracy jumps to 95% in the final hours before an event. The financial incentives for participants mean these markets aggregate expert knowledge and signal outcomes before they are widely reported, acting as a truth-finding mechanism.