Its perpetrators have advanced in reputation and position. No less problematic is the situation in which we postulate that those assumptions are founded on reality and then proceed to try to implement either alternative. Apportion them among different classes. There are more than 15,000 school boards in this country. There are less comfortable questions.
Specialists find it hard to keep up personally with developments in their own fields.
Even simple physical activity clears the mind far better than expatiation on vague concepts. Think of the millions of hours of educators' time spent each year on contemplating and arguing about concepts that are as vague as their professional discussion is haphazard. As diverting as such controversy may be, it consumes resources that might be put to better use.