Trivia

With the observation the young Nemo makes 'As long as you don't choose, everything remains possible', would seem to be a variation on basic quantum theory as illustrated through (Erwin) 'Schodinger's Cat', unseen, in a box thought experiment i.e. that the choice to make a decision, to observe what is, coalesces / collapses states of uncertainty (the cat is only either dead or alive, only when looked at), into what we experience as our = his, Nemo's, final reality. See more