Fig 1: (a) Galilean relativistic Newton space-time, i.e. space, namely the x-direction, living through absolute time t = t*: The t-axis is observer O’s world line while the t*-axis represents the history of observer O*. (b) Einstein relativistic Minkowski space-time: O* moves with about a third of the velocity of light to the right. The event E occurs at t larger t0 but at t* smaller t0, although both observers meet at t0 and synchronize their clocks then. There is an entirely new region that is neither dependent future nor determined past, called the “absolute elsewhere”. [1]

Turning Popper Around To Make Everett An Appendix To Einstein

By Sascha Vongehr | January 23rd 2013 05:59 AM

A century ago, “past” and “future”, previously strictly apart, mixed up and merged. Temporal terminology improved. Today, not actualized quantum states, that is merely “possible” alternatives, objectively “exist” (are real) when they interfere. Again, two previously strictly immiscible realms mix. Today, not temporal, but modal terminology (~ how to use the word “possible”) is insufficient.

The full unification of relativity and quantum mechanics can gain momentum from modal realism, which is basically just the realization of that my present situation is a contingent alternative, or equivalently, that all possible futures will be actualized. This is self-evident* and for half a century also empirically confirmed by quantum mechanical experiments. Einstein relativity and Everett relativity are both merely different aspects of the underlying modal relativity between alternative situations in which observers can find themselves in.

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