I'm bad at names, so I didn't know the name, but followed the Wikipedia link and saw he was the "modeless" advocate, and I learned about that from this awesome Bret Victor talk: https://vimeo.com/36579366. Someone has commented to forward to 38 minutes to hear it.

That Bret Victor talk still influences me today, so please watch it I think it'll help you if you haven't watched it already.