First, load up what many fans consider to be the greatest Radiohead live show of all time: Berlin July 4, 2000 (a few months before they released Kid A):
Second, dig into this extended oral history from @RollingStone on OK Computer. This initial imperial phase set the commercial stage for the major breakthrough on Kid A / Amnesiac: https://www.rollingstone.com/music/music-features/radioheads-ok-computer-an-oral-history-196156/
Third, pick up where the oral history leaves off--grab a copy of "This Isn't Happening: Radiohead's 'Kid A' and the Beginning of the 21st Century." @Steven_Hyden pens an excellent deep dive into the massive impact of Kid A: https://www.hachettebookgroup.com/titles/steven-hyden/this-isnt-happening/9780306845680/
Fourth, after the Berlin show wraps, cue up "Kid Amnesiac"—an attempt to consolidate the tracks from the sessions into one single album. This is my take on the tracklist redux from @Steven_Hyden's aforementioned book: https://open.spotify.com/playlist/43MaoferHxThWpkthd8pHH?si=b51IIK_bT9-PSpc_NtdxVw
Finally, wake up tomorrow like Tom Cruise in Vanilla Sky, sucking a lemon and wondering whether everything is in its right place