Blockchain is the new XML
Bosses at the end of the 1990s would announce that we would be doing everything in future "with XML" and hire a twat on £1200 per day to ponce about analysing the business. Two months later, they would vanish leaving behind a half-written DTD and an irrelevant project statement. The boss would then tell you to finish it off without training or assistance, the budget having been used up.
Biting the hand that feeds IT
