Liquidity is at first an informational phenomenon. Arbitrageurs bring information to Uniswap through arbitrageur trading - an informed flow. For their service, arbitrageurs receive arbitrage profits. Since Uniswap LPs already pay for this information once (through "impermanent loss"), we want to avoid paying for it again. We achieve this by pulling the required information from the Uniswap Oracle and then adding a trade delay on top. By capturing this information for free, we eliminate impermanent loss.