Supporters of "reification (fallacy)", say thought up ideas cannot be thought of as concrete, but instead, ideas can only be linked to physical concrete; I think that's wrong, and brains can muscle on an atomic level. "Reification (fallacy)" is ignorant of malleable sensory aspect.
Ill-defined "sense" is definitely in my head; an idea, a personal reflection to my head.
"I had an idea!", no you didn't according to "reification (fallacy)", it's is an idea shared, not an idea personally.