Since we may be getting confirmations that “Looking Glass” is real, I suggest you anons start playing Zero Time Dilemma and reading Higurashi No Naku Koro Ni.
Near the end of the “Q Team” Story, the game explains what a quantum computer is and its ability to predict the branches of multiple time lines.
The concept of “the sea of kaekras” in Higurashi is basically a physical prop visualizing the shit Zero Time Dilemma talks about. “Kaekra Shard” = a timeline.