The key idea behind professionalisation, argues Menand, is that "the knowledge and skills needed for a particular specialisation are transmissible but bot transferable".

But the key idea behind professionalization, argues Mr. Menand, is that "the knowledge and skills needed for a particular specialization are transmissible but not transferable."

Asking juicy questions appears to be a transferable skill for deepening collaborative inquiry into the science content found in exhibits.