It is the hypothesis that all observers are actually manifestations of a single observer experiencing all of time, space, and every point of view. All world lines across spacetime are parts of one single line "like a huge tangled knot" traced out by the one observer.
If you subscribe the the many worlds interpretation, you can basically look at observers as existing within the space of eigenvalues of operators acting on the massively entangled wave function of their respective universe.
lioeters · · focus · HN ↗
It is the hypothesis that all observers are actually manifestations of a single observer experiencing all of time, space, and every point of view. All world lines across spacetime are parts of one single line "like a huge tangled knot" traced out by the one observer.
Enginerrrd · · focus · HN ↗