"The power to understand and predict the quantities of the world should not be restricted to those with a freakish knack for manipulating abstract symbols."
Most people can’t do more than the simplest derivations in their head, the symbols are just a notational placeholder, and also used to communicate with others.
The abstraction is the what you have to have a knack for, not the symbols themselves.
The abstraction is the what you have to have a knack for, not the symbols themselves.