Practical Byzantine Fault Tolerance is actually a consensus algorithm launched from the late 90s by Barbara Liskov and Miguel Castro. pBFT was designed to work efficiently in asynchronous(no higher certain on when the reaction towards the ask for will be received) units. It really is optimized for small overhead https://financefeeds.com/solana-price-prediction-sol-can-hit-200-this-summer-as-layer-2-solaxy-raises-50m/