This GEX thesis is very simplistic -- break down the analytical process into First Principles, and that points to the primacy of Customer Flows (signed Calls and Puts). Customer signed call and put flow is the originating force. Dealers absorb that flow, then the rest of the stack (delta hedges, gamma regimes, GEX walls, flip levels) is just the mechanical consequence of dealers staying neutral. Signed customer flow is primary because it sets the sign of the dealer book: customer buying of calls or puts leaves dealers short those options; customer selling leaves them long. That inventory—not open interest by itself—determines whether later hedging will dampen or amplify price. Naive GEX models often assume customers are always long options; signed volume or Cboe participant data is what actually tells you whether that assumption holds on a given strike. Delta hedging is the first derivative of that book. Dealers trade the underlying (ES/NQ futures) to stay flat. The size of that hedge is current delta; its change with price is gamma. Positive dealer gamma produces fade-the-move flow (buy dips, sell rallies). Negative dealer gamma produces chase-the-move flow. Those are still just rebalancing rules applied to the inventory created by the original customer prints. GEX, call/put walls, and “gamma platforms” are second- and third-order maps of the same thing. They aggregate gamma × estimated dealer position across strikes so a trader can see where hedging pressure concentrates. They can validate levels and change behavior, which is the limited claim in the original post, but they do not originate the edge. The edge, if any, sits in reading whether new signed Customer flow is reinforcing or unwinding the existing dealer book—not in treating a derived heatmap as a secret switch. @triad_trades