Is the Universe a Hologram?

The question might seem like nothing more than mental gymnastics, a thought-provoking but "out there" question meant to give college students something to discuss at 3am. However, work published last week in Physical Review Letters provides observational evidence that this could actually be the case."Was there a beginning of time? Does it make sense to ask: What were the physical laws before time and space exist as we now perceive them? If yes, is there observational evidence? What is [the] orig...