On the premise and the promise of prediction markets, which hit the main stage with the most recent election -- what worked (and didn't) this time? We tease apart the hype from the reality of prediction markets, but also go more deeply into the how, why, and where these markets work; the design challenges and opportunities (including implications for builders) of these and other information aggregation mechanisms; and more. Where do (and don't) blockchain and crypto technologies come in? What are some of the most interesting applications, both immediate -- like for corporate decisions or scientific replication -- and in the near to distant future, across trends like AI, DeSci, futarchy/ governance, and more?