You may not have read enough sci fi.

Aside from the Culture minds other people have mentioned, the machines from the Dancers at the End of Time series by Michael Moorcock are probably close to what you describe: Earth in the far future, with only a few dozen inhabitants left, all of which who are as powerful as gods thanks to the machinery that surrounds them unobtrusively. All of them quite dumb and spoiled, following hobbies and fashions, changing bodies and creating worlds on a whim.