This is ridiculous. They say they are not going to transmit electricity back to shore, but of course a data center is not useful unless it moves bits back to shore, using electricity. Were they planning to "sneaker net" the data out of there once the model finished training?
You cannot escape the physics of consuming data (which is stored as electrons) on land by producing said electrons at sea.
You cannot escape the physics of consuming data (which is stored as electrons) on land by producing said electrons at sea.