Why is there so much separation between the professional audio and audiophile worlds?

Even the best measurement microphones, unless digital out and internally calibrated must be externally calibrated, preferably digitally to be flat.  Most microphones are flat over a frequency range not everywhere and when you look off axis not at all.

Your concept of fidelity is based in lack of knowledge but you spew on about it none the less. I am sorry you don't enjoy being wrong but that is not my problem.

Digital just sucks in my honest opinion. Compression, suppression all you end up with is soulless sound.

The question is why because if you look back to the golden age there was no or very little separation between the two the best stuff was the best stuff period pro or home.

Anyone that says all digital sucks has clearly never heard a decent SACD played on even a moderate system, among other possibilities.

Pro has moved on , audiophiles are stuck trying to find the best sounding fuses and wires while professionals are using active speakers with class D amps and DSP. There are a few crossovers like Kii and Dutch and Dutch trying to appeal to both.