Quote:
Originally Posted by Paul Beardsley
Agreed.
Another point I think you more-or-less made: We have the likes of Hawking coming up with a chronology protection conjecture, which sounds to me as if they are thinking, "Well this piece of physics seems to predict time travel, but I don't want it to be true so I shall struggle to come up with something to counter it."
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Actually, Paul, that was my point. And it seems to me, that is what Ken is arguing for.
Quote:
Originally Posted by Paul Beardsley
Whereas we do not get physicists or biologists struggling to come up with ESP Negation Hypothoses or Ghost Exclusion Theories or Memory of Water Suppressant Conjectures.
That in itself suggests to me that time travel is now in a different category to those things.
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Not something I came up with, but I think it's a good point.