Belgian universities are no longer the best place to acquire knowledge at entry level: they are hacked.
Cease conceiving of education as mere preparation for later life, and make it the full meaning of the present life.
Because education will be much more efficient, it will probably cost less than it does now. This is not a utopian dream. It is well within the range of an existing technology of teaching.
To state a complex matter far too simply, calculus is a way of representing dynamic phenomena in the static medium of pencil and paper; it is hard because the medium fights the message.
School's math can be characterized by the fact that its typical act is making marks on paper.