He has some loose comparisons. Adults acquire foreign languages including foreign sounds. English is a separate entity in my mind, neutral position of the jaw, tongue system is entirely different from my native language.

Different cultures has different color naming schemes. I have hardware problems on color perception (protanomaly) yet I can learn new color names. Looking at children it takes years to learn color names.

His example of learning — pressing keys on the piano and saying name — is incorrect. It should be game, music is game. We live in the age of unprecedented gamification. Maybe it is possible to make baby steps. Some people claim they've internalized F#, ok internalize every note.

He is right that recognition should be instantaneous. His real argument — teaching has not been achieved as course, probably it is impossible, I'll try.