A callermakes a structured, falsifiable call — an asset, a direction, a target, a deadline, and a confidence level. It's scored on calibration, not luck. A backercan then mirror the caller's real position, sharing the real market outcome — never betting against anyone, and never against another user.
The diagram below is the whole shape of the product. Everything else on this page is detail underneath it.
Two ideas do separate jobs and stay separate on purpose: reputation tracks precision (the exact claim, scored strictly) while money tracks the real market (the actual price move). A call can make backers money and still score as a miss. See Worked examples.