Somewhat related: I'm finding that the prevailing wisdom about conglomerates being a failed experiment is being put to the test and found wanting by Amazon, which has (over the course of the new century) transformed itself into an aggregate of concerns with no obvious interrelation.

there's one obvious and it's logistics. amazon is all about optimizing the supply chain from the factory to the consumer door (or back yard in case of drone delivery. only half joking here :))

Exactly. I think the most goods will be provided by 5-10 mega corporations in the next 10 to 20 years.