In 2001 Ed O'Brien said the half-finished Kid A takes were being saved for what?

“Our box set in 20 years when no one's interested in us anymore”, he told Channel 4's Planet Sound. He was right to the year: Kid A Mnesia came out on 5 November 2021, the two records as one at last, with a third disc, Kid Amnesiae, made from the same tapes.