Some scientists believe the entire universe could be a hologram — a 3D projection from a 2D surface, based on mathematical patterns found in black holes and quantum theory.

The holographic principle suggests our 3D universe could be a projection from encoded 2D information, akin to how a hologram emerges from flat film[1][2]. If a higher civilization stored this data in a "book," its pages might contain entangled quantum bits (*qubits*) that...See more