Optimizer inherited the pool it was trying to improve
Morpho's first design was a matchmaker. Optimizer sat on Aave and Compound, pairing lenders and borrowers when that improved their rates and falling back to the underlying pool when it could not. The mechanism attacked a spread problem without rebuilding the market beneath it.
That bargain also fixed Optimizer's horizon. It still depended on the pool's listed assets, liquidation rules, governance and liquidity. In July 2023 Morpho's own account described the limitation and foreshadowed a smaller, standalone primitive. The metamorphosis was architectural: stop optimizing someone else's pool and decide how little a new base layer needed to know.