I'm not a physicist so unfortunately I don't know whether this is true. However, of all the documentaries on Physics that I've seen they have never mentioned this.
Could anybody please chime in whether this is true.
Furthermore, any idea that is put forward in terms of "X (a well-known concept) does not really exist" is almost certainly gibberish masquerading as hype. Of course time exists. If time is "really" an illusion it is still a perfectly real phenomena that is created by perfectly real causes and which results in perfectly real responses in knowing subjects who then mis-interpret their cause.
Illusions are real. When we see impute a bend in a stick that passes through the water's surface we make a mistake, but the bend is perfectly real: it is just that the bend is in the light that passes between the stick and our eye, not in the stick itself. Anyone who says the bend is not real has to explain how is it that we see it. We cannot see what is not real, although we may on very rare occasions misinterpret what we are seeing (we know the occasions are very rare because if they weren't we would have no ordinary, non-illusitory experiences to contrast illusions with.)
Could this be used as an argument that we are inside the simulation of the universe? I mean if I were to design a game, I might leave the state undefined until it's necessary for it to be known (by some consciousness perhaps).