It's nice because this interview adds to my knowledge of the use case for centralized chains from watching your Dragon interview. I can see how businesses have no interest in coupling decentralized blockchains with privacy since they need to prove that their operations are all above board. With the example of invoicing and crediting, I can apply my knowledge as a self employed contractor to understand what's in these sidechains for small business owners.
One thing I would like to know more about are those liquidity pools like Uniswap.