A motivated individual could repeat the effort on city power, diesel supplement, a mishmash of cpus cobbled together to few thousands of nodes and a cleverly selected training set... And then connect it to the Internet on purpose. Frankly I think the eventuality of this are llm created firewalls of viruses consuming ever increasing amounts of energy to destroy any uninitiated/unpaying connector. Across the world knots will form at the only borders that matter anymore. Eventually one ID provider will protect us all from noone and the only people who need to worry are those who incidentally wind up on the wrong side of everywhere.