Introduction In the last video, Bill left off talking about proof of work (PoW) algorithms. In a distributed and decentralized environment, PoW used to be the gold standard for a node to participate equitably in a Blockchain. However, with PoW as the number of nodes on the Blockchain increases, the amount of energy waste increases. This is because each node is performing the same computationally heavy calculation and only one node’s energy usage is leveraged to write the next block.
