“It has been demonstrated earlier that there are real problems or, at the very least, an area of ambiguity in quantum mechanics, specifically with regard to probability and uncertainty. There is no answer from the school of thought of Bohr, Heisenberg, or others that convince everyone of what happens to the other expected possibilities for the particle or wave—that are not recorded in the observation—and the collapse of the wave function. To solve these problems, Hugh Everett, who was a postgraduate student at Princeton University, proposed the many-worlds interpretation.
‘The importance of Everett’s work, published in 1957, is that he took this seemingly outrageous idea and put it on a secure mathematical foundation using the established rules of quantum theory. It is one thing to speculate about the nature of the universe, but quite another to develop those speculations into a complete, self-consistent theory of reality’ (Gribben, 1984, 238).
All other possibilities of the event, or let’s call it an alternative reality, take place within these multiple universes, even though we observe just one of these possibilities, which is the reality that we experience and see. Rather than illogically saying that the other possibilities disappeared or evaporated at the moment of observation and that the moment of observation created one of the possibilities (reality) and eliminated the others (the alternate reality), and rather than the observer and the measurement process having an incomprehensible effect in creating one reality and making another disappear, Hugh introduced a solution to the effect that all possibilities actually exist and have materialized, but in other worlds or universes.
In other words, there is no wave function collapse. Instead, more than one true reality exists, but in different worlds and universes that appear in the interference. This interference can be measured at the quantum level as it occurs when we measure the particle. For example, when we choose and observe one of these virtual forms, that same observation process keeps us from observing and measuring the rest of the virtual forms. For this reason, we are able to measure and observe only one of the virtual forms.”