The deep learning is that there are forces that lead to centralization: generally they are variations of human choice and seeking economies of scale.

For instance, it's no accident that we started with hundreds of thousands of small websites and ended with most traffic going to a few. Ask yourself how the internet could have been constructed that would have prevented sites like Facebook or Twitter winning the popularity contest. The 'Power Law' dynamics behind this are the same ones that lead to some airports being hubs and others not, the fact that there is a backbone rather than everything going point-to-point, and many other phenomena.

We can have decentralization but there are costs. Someone has to pay them.