Actually, handwritten note taking in particular is a professional task that you can not do on a regular PC or Mac. As a theoretical physicist, doing math "on pa

Actually, handwritten note taking in particular is a professional task that you can not do on a regular PC or Mac. As a theoretical physicist, doing math "on paper" is not something I can do on a PC or Mac, and doing it on an iPad is orders of magnitude better than using actual paper, as it allows for moving things around and revising.