Obviously a drawing of a person is not a real person, but a drawing of a line is a real line.
A work of art may be understood as a conductor from the artist's mind to the viewer's. But it may never reach the viewer, or it may never leave the artist's mind.
Donโt worry about cool, make your own uncool.
Minimal art went nowhere.
The idea part is simple but the visual perception is complex.
What the work of art looks like isn't too important.