EPR paradox and prediction time

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We are talking about different things. If my answer is not helpful, forget it.
 
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I think it points to a discrepancy between the description in words and in formulas in the epr paradox.

Epr considers two particles interacting, hence at the same place in the text. Then it describes this state with the wavefunction delta(x1+x2). In the latter the 2 particles are not at the same place so imo there lack a time evolution to describe the system between the pair creation and the measurement.