People will be freed from the absurd requirement that we communicate with software by typing and using a mouse. We don't communicate with one another this way, so why should we do so with software?

The unanticipated uses are almost always the most interesting.

People clearly reason spatially and with images as well. We think it will be important for computers to be able to do the same.

We have shown that it is credible for a drawing medium to exist that understands what you are sketching, and can then assist with the task in some way.