Practical Byzantine Fault Tolerance is really a consensus algorithm introduced while in the late 90s by Barbara Liskov and Miguel Castro. pBFT was designed to work successfully in asynchronous(no higher bound on when the reaction on the request will be received) techniques. It is optimized for reduced overhead time. https://financefeeds.com/argentinas-president-cleared-in-libra-probe-but-criminal-case-still-looms/