@fuguer
```John Conway and Simon Kochen have proven the free-will theorem that shows that if the experimenters have the free will to decide what buttons they are going to press (and they seem to have it, at least in some countries), the particles (and other objects) measured in their experiments must have the free will, too. This amusing statement means that the outcomes of the experiments can't be calculated as a function of some "hidden variables" in their past light cones, not even in principle.
This conclusion means that the spacetime including all the events that have actually happened - and that will happen - cannot be interpreted as a coherent block that obeys unambiguous laws. The "free will" they derive means that the outcome of an experiment done "now" is not a function of things in the past. In this sense, the results of these experiments are "really" decided now. They were not decided in the past. That's what the free will means. Conway and Kochen's theorem therefore supports presentism, at least morally.
And the future cannot exist now, either. The fate of the Universe (and its particles) in the future hasn't yet been decided. This statement is what the free will actually means. The spacetime may exist in some abstract sense but because the theorem literally says that the future events don't depend on things that exist "now" but also on random decisions that are invariably linked to the future points in spacetime, it is legitimate to say that the future "doesn't exist now". ;-)```
<https://motls.blogspot.com/2008/05/presentism-vs-eternalism.html>
