Good Riddance to Proof of Work?

We spent a great day yesterday outlining how smart contracts worked for our students. I even managed to do a live creation and consumption of the smart contract. After hacking kettles, dolls, CCTV cameras, and so on, I think that demonstrating a smart contract to an audience — and where it worked — is perhaps the most satisfying demonstration that I have ever given. Why? Because I was showing a new way of thinking. An alternative. A…