Coping with crypto’s volatility is certainly a problem. As much in the blockchain space understand, DAI is not the first stable coin in the area. Predecessors include Tether, TrueUSD and some others. However the risk of all of these tasks is certainly that the custodial party keeping the real US dollars will refuse redemption of the stable coin for just about any regulatory reasons. This goes against the ethos of crypto getting permissionless.