Negative rates of over 10% and UNI's business partner ceased operations.

In a blockchain report, Wu said on the evening of April 7, 2020 that the negative value of the fixed income efi was above 10%. According to the procedure of the fei contract, when the wrong price occurs, when the user sells the fei, part of the fei is destroyed, and the damage amount is the square of the wrong price. In other words, if the negative value of fei Stabilitécoin exceeds 10%, the user cannot earn anything by selling fei, which is zero. uniswap's fei business partner was also suspended and the user market was shut down. The Fei Stability Piece can be lost in the Death Vortex.