Vitalik is of course best known for founding Ethereum. However, today I learned that he also figured out the math and mechanisms to make future DEX’es like Uniswap actually work well.
Before his Reddit post, decentralized exchanges were in a terrible state, with massive spreads and fluctuations. The XYK idea spread quickly and drastically improved status quo.
So without further ado, here is the history-making post: https://np.reddit.com/r/ethereum/comments/55m04x/lets_run_onchain_decentralized_exchanges_the_way/
Yet another reason to love our dear skinny king.