[sunnya97]

Adding on to what coinculture said, the traditional BFT nature of Tendermint consensus gives it a lot of benefits over Nakamoto consensus such as 1-block finality and safety guarantees in asynchronous environments.

Traditionally, these BFT algorithms did not work in public settings, and only worked with fixed validator sets. However, with the conceptual invention of Proof of Stake, we realized we can use cryptoeconomics to facilitate validator set changes in a public network.

And yes, 2/3 of nodes are set to be honest. However, just in case you weren't aware, it's pretty not well known, but Nakamoto consensus also has a 2/3 threshhold due to the game theoretical vulnerabilities caused by a process known as selfish mining.