Most of art school is unlearning the "natural" way one might draw and paint and relearning ways to look at things and build up paintings and drawings in a much more iterative and incremental manor.

That's one reason I suspect the really "great art" will one day be made on computers.

Computers make mistakes cheap. Fear kills creativity.

edit: scratch "will one day", substitute "is". At least the sort that would never have been made on paper because the artist held their hand back.

What made people masters in the past was the triumph over fear. Much like typing on a computer when you think of the words that you are typing you type slower than if you just let your hands work the keyboard. The great artists of history overcame their fear and let their body and mind create. When you bypass the fear there is not the same struggle to master the medium. If there is no longer a barrier, you will get good media but everyone will be able to do it and it will no longer be great.

Do you mean anyone with an iPad can paint like this?

Also may I ask: did you watch the video to the end?

The end credits mention that the making of this particular painting was streamed live, in real time. I would say that takes a certain courage.

Things that are skill-based still require an enormous amount of practice to do well. That will never change.

He is painting the Fourier components of the image from longest to shortest wavelength.