For many decades, we have wanted to know something profound about the “quantum aspects of spacetime” and “quantum gravity” and holography showed us a – partially unexpected – detailed version of the principle that becomes about as important in quantum gravity as the uncertainty principle is in quantum mechanics and the equivalence principle is in general relativity.
— Laymen’s allergy to the holographic principle
— Lubos Motl
2014.04.05 Saturday ACHK