A lot of his talks and writing are like this. Fluffy, hand-wavy; but nothing you can actually do anything with. But that's not what he's good at - he's good at

A lot of his talks and writing are like this. Fluffy, hand-wavy; but nothing you can actually do anything with. But that's not what he's good at - he's good at being an airbag. Which, while cynical is not an invaluable lesson what works.