When market power concentrates in too few hands, the whole game changes. Fewer participants means fewer competing bets, and when that happens, decision-making becomes increasingly centralized. This concentration risk isn't just an economic footnote—it shapes everything from pricing power to innovation incentives. The dominance of major tech players demonstrates exactly how dangerous it becomes when alternatives shrink and market choices consolidate. It's a pattern worth watching across any industry, but especially critical in spaces where decentralization was supposed to be the answer.