Orbital - an automated market maker for pools of 2, 3, or 10,000 stablecoins

Orbital is a proposed automated market maker for pools of two, three, or 10,000 stablecoins, which extends concentrated liquidity beyond the two-asset pools supported by Uniswap V3. The paper states that Orbital draws tick boundaries as orbits around the $1 equal price point, so that even if one stablecoin depegs to 0, an Orbital tick can still trade the others at fair prices. It also says smaller ticks near the equal price point need not hold capital in reserve for a depegging coin, which lets liquidity providers focus capital where normal trading occurs. The paper describes the full AMM as a sphere whose ticks, when consolidated, form a toroid that allows trades to be computed efficiently onchain regardless of the number of coins.