It seems neatly organized to say "that we can explain all brain activity" and yet not necessarily bound exactly what is "brain activity." I think prior to recent research [1] people would have concluded that memory was solely the domain of the brain. But that sense/setting/environment would allow Clive Wearing to circumvent amnesia to access skills otherwise unavailable to his conscious mind [2] should raise questions of that understanding.

[1] https://www.nyu.edu/about/news-publications/news/2024/novemb...

[2] https://en.wikipedia.org/wiki/Clive_Wearing