Try to answer a simple question: do we have benefit from append-only files? Are them sustainable means of storage? IMVHO the answer is "very limited to specif d

Try to answer a simple question: do we have benefit from append-only files? Are them sustainable means of storage? IMVHO the answer is "very limited to specif domains, like for short-term logs" and "no". Blockchain is an append-only big file with no real means to drop past content after a certain amount of time. Distributed (really) software have simply too much overload to work properly. The REAL hi-tech future is from the '70s: desktops, connected via open protocols no one really own, like emails, usenet etc. Local software, local storage. The short-term future will be a continuous push to the classic mainframe model, the cloud is the actual version, is nearly not sustainable anymore so new model to offload costs and jobs appears (take a look at edge/fog computing for instance). That's just a totalitarian surveillance dream dressed as a Trojan horse to be accepted as a good thing but will not last for long.