- #36

#### Ibix

Science Advisor

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So you can have two different models of the star, one with the rocket and one without. Sure. But that is not a model of the universe, which includes the rocket and includes you. A larger model includes you and the rocket, and in a deterministic universe the outcome of your choice is already determined by the initial conditions before you start thinking about building a rocket. That's what deterministic means.HansH said:but If I decide to send my rocket to that collapsed star it will for sure pass the critical limit I suppose. so keeping the rochet on earth or sending it to the star are 2 different initial conditions because the lead to a different result.

You are free to consider a model that is not deterministic, but that is not GR. However, the singularities you asked about are a feature of the mathematics of GR (and since we don't have a non-deterministic theory of gravity we cannot say anything about any possible singularities in such a theory), so you are either stuck with determinism or you asked a poor question.