Back in 2018, Professor Hertog said: “It’s a very precise mathematical notion of holography that has come out of string theory in the last few years, which is not fully understood but is mind-boggling and changes the scene completely.
“The key point is that we’re not projecting out a spatial dimension. We are projecting out the dimension of time from ‘before’ the Big Bang.”
Published a month after his death in the Journal of High Energy Physics, the theory is compatible with eternal inflation and Einstein’s theory of General Relativity.
Defining what makes a hologram, Professor Hertog explained that it can be viewed as a kind of dimensional change.
Professor Hertog added: “It’s a theory that envisages a beginning to the universe where time is not present but our notion of time crystallises.
“And it’s saying that time is fundamentally coming out of some other state for which we have no words.
“Some very abstract timeless state – that’s the best we can do.”
His final published theory is not the first to imagine the universe as a form of pseudo-existence as theories have arisen over the last few decades indicating that humanity is living in a ‘Matrix-like’ simulation.