Microsoft and IBM each dominated their generation of tech, and they each lost that dominance, not because of anything they did, nor because of anti-trust, but because the business they controlled stopped being the centre of tech.

Amazon is a big company, but what does that mean? How big is ‘big’? What does ‘dominant’ or ‘scale’ or ‘huge’ mean when US retail is $6 trillion every year?

Phones are boring now, so how does Apple use accessories and services to expand and defend the iPhone business? And does TV matter at all?