Traditional sports betting allows insiders to exploit static odds. In a liquid prediction market, a large bet based on inside information immediately moves the odds, reflecting that knowledge in the price and eliminating the arbitrage opportunity for the insider.

Financial personality Vivian Tu warns against platforms marketing "prediction markets" as an investment class. She clarifies they are simply a modern form of gambling on outcomes, akin to sports betting, and will likely deplete wealth rather than build it.

Prediction markets are cannibalizing the traditional gaming industry by framing gambling as an intellectual activity. This creates a more compelling 'product' that is already impacting gaming stocks and tourism, while introducing severe societal harms like addiction and new forms of insider trading.

Platforms for "trading" on world events are fundamentally gambling, not investing. True investing involves owning an underlying asset. Betting on outcomes like a football coach's hiring has no underlying asset, making it equivalent to a casino bet, often fueled by economic desperation.

Prediction markets thrive on information asymmetry, mirroring the stock market before 2000's Regulation FD, when selective disclosure was common. This structure means 'sharps' with privileged information will consistently profit from 'squares' (the public), making it difficult for casual participants.

A more significant danger than insider trading is that individuals in power could actively manipulate real-world outcomes to ensure their bets on a prediction market pay out. This moves beyond leveraging information to actively corrupting decision-making for financial gain, akin to throwing a game in sports.

Financially savvy investors see prediction markets as an inherently superior product. However, real-world data from the UK's Betfair exchange, which only captured 5% of the market over 20 years, suggests the mass market has different preferences.

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.

While praised for aggregating the 'wisdom of crowds,' prediction markets create massive, unregulated opportunities for insider trading. Foreign entities are also using these platforms to place large bets, potentially to manipulate public perception and influence political outcomes.