https://music.youtube.com/watch?v=7YZRcFZ6Y0M
Aside from the centralisation vs decentralisation debate as applied to business I think IBM/Fujitsu/Oracle and a few others will be there for a very long time chugging away in big businesses and banks, because a lot of what they do is esoteric enough that there isn't huge financial incentive to develop distributed alternatives. Plus the physical boxes + services are a tiny fraction of their clients revenues despite being £1m++ affairs. I don't want to Google distributed COBOL. The idea of it is appalling. Despite the Ford Model T there are still Rolls Royces and Bentleys. Although maybe a better comparison is the Ford Model T (data/compute services) to combine harvesters (big mainframes doing specific tasks). It's always interesting times.