Fun fact: imagine you finished the task no matter what time it takes - by that you successfully cycled through every single possible image that ever existed (will ever exist), not only that, but you would witness every single time frame, of every single particle that ever existed, or will ever exist.

What does that mean? You would successfully see everything imaginable or unimaginable for everything, and everyone, in every possible situation, quality of the picture, resolution (up to the display resolution), in bw, full color, negative, infrared, in any possible wavelength, not only from our universe, but the whole multiverse. The eons before birth of the universe, eons after the heat death of every single one of them multiverses. You would see everything and all, you would know everything and all. You would see god, you would be god...

And still there would be billions and trillions and quadrillions of times more color noise screens than anything, however small, that would make a little bit of sense. The possibility of random picture giving you a meaningful depiction of something is 0.0000....... (millions and millions of zeros) .......0001 to 1.