Jonas Dinsmore is not half the physicist as his colleagues, the politically astute Adams and the brilliant Muller, but in their presence, he claims to have figured out how to interpret Muller’s Grand Unified Theory to allow time travel.
Time-travel, in the sense of going backward to change reality, is not only technologically impossible now, but it is theoretically impossible altogether.

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  1. “The Winds of Change” by Isaac Asimov, in Speculations, edited by Isaac Asimov and Alice Laurance (Houghton Mifflin, 1982).
    2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Isaac Asimov