I used to work for a high end home theater company. The boss' son was a total audiophile and was constantly bragging about all the high end audio they sold and

I used to work for a high end home theater company. The boss' son was a total audiophile and was constantly bragging about all the high end audio they sold and put in their clients home theaters. I used to listen to a set of $15K speakers and then to a set of $8K speakers and I just couldn't tell the difference. It's kind of the same I think with monitor resolution, at some point, can the human eye really tell the differences between all the high end resolutions out there right now? I have doubts most people can TBH, but would love some evidence we're not beyond the capabilities of what the human brain and eyes can actually differentiate between.