I can explain. On stereo you will be hard pressed by most people. The issue is where and how is everything done from recording all the way to mastering.

Technically here is how it works. CDs are at 44.1khz sample rate and you record at 96khz back in 2000s, similar how video recordings are 8k for 4k or 1080p. Then when you exported your mix to be mastered it would get knocked down to 44.1khz not very noticeable in the least unless you listened to stuff all day everyday and had to train your ear to hear everything.

If you compare the two 96khz and 44.1khz there is a distinct difference BUT it is not something that people would care about because their equipment only gives a clarity of less than 44.1khz. My system from recording all the way to audio output and DAC were 96khz and cost my thousands and thousands of dollars.

I do believe that you can tell when you hear the two. Kind of like how FLAC and MP3 sound different on my LG V20 phone.