Bruno Marchal wrote:
On 13 May 2015, at 08:20, Russell Standish wrote:
For a
robust ontology, counterfactuals are physically instantiated,
therefore the MGA is invalid.
I don't see this. The "if A then B else C" can be realized in a
newtonian universe, indeed in the game of life or c++.
And the duplication of universe, one where A is realized, and B is realized
+ one in which A is not realized and C is realized,
might NOT makes a non counterfactually correct version of that
if-then-else suddenly counterfactually correct.
Counterfactuals and MWI (and robustnesse) are a priori independent notions.
For once I agree with Bruno. I think this is right and that
counterfactuals are not, as Russell suggests, instantiated in the other
worlds of the MWI in any useful sense.
Bruce
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