The analogy of seeing an original painting in a gallery vs. looking at a print is appealing, however, I can't help think that we're comparing apples and oranges here: paintings are 3d objects and prints are 2d reproductions. All image projections are reproductions, and the colour and textural properties inherent in photochemical film processing are subtle and trivial to reproduce digitally.

I'm fairly certain Nolan himself could be fooled in a double blind test between 4k digital and a 70mm (assuming he didn't oversee the transfers haha).

This is more about _knowing_ how the picture was produced, and that it was reproduced faithfully, and the excitement that comes from that for those who care. The placebo effect is real :)