This talk was given at the 22nd meeting of the Toronto chapter of Papers We Love, hosted at Shopify Toronto on December 7th, 2016: https://www.meetup.com/Papers-We-Love... David Kua presented the paper "The Weakest Failure Detector for Solving Consensus" by Tushar Deepak Chandra, Vassos Hadzilacos, and Sam Toueg: http://www.cs.utexas.edu/~lorenzo/cor...