Panel: The what, the why, and the how of smart contracts: what are they good for, how do they actually work, and why do we even need them?

Panel: The what, the why, and the how of smart contracts: what are they good for, how do they actually work, and why do we even need them?

What exactly are smart contract and how do they differ from traditional contracts? How can they be made legally valid and enforceable? What are the various use cases for smart contracts?