Anything that could be thought of, could be thought to others.

Onur Cobanli ཡིས་འགྲེལ་བཤད་བརྗོད་པ།
There are no limits on education, if you can think of something, you can teach another the very think that you think of, so anything that you can think of, you can teach of. But you cannot teach anything you cannot think of, and thinking of is not always just thinking of, it perhaps also covers having an understanding of as well. Design is no exception, if you can think of design, you can teach another how to think on design, but I never talk about if it is easy or not, just stating it is possible.