No they do not, if they did the whole universe must change every time you drive your car.
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Fine. No problem with that. If you mean the mathematical model of the universe will have different 'values' that is fine. Particles will be in different places, hence a 'different' universe. I would worry if it were otherwise.
Digest or don’t, it is your own problem if you ignore what reality is and not is.
To a certain extent I dont care about reality as you call it. The issue at hand with a lot of the questions I have posed to you, none of which you have answered, refer to the mathematical model of the world around us. In that sense whether the reality is there or not I dont care. That is a question for philosophers to sit round discussing. Us mathematicians and scientists can quite happily get on with things that demonstrably work.

