Curt Adams wrote:
> >... prefer a pleasurable meal this evening to one ten years ago ...
>
>I find this a nonsensical concept. Preferences for past actions have no
>meaning, as you can't undo them. ...
Time machines are not logically impossible. Whether they are physically
impossible remains to be seen. So you should be able to make sense of
hypotheticals wherein you use a time machine to change past actions.
Robin Hanson rhanson@gmu.edu http://hanson.gmu.edu
Asst. Prof. Economics, George Mason University
MSN 1D3, Carow Hall, Fairfax VA 22030-4444
703-993-2326 FAX: 703-993-2323
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