Thank goodness for this article. I had seen a few of these tools and have been thinking about this topic for a while, but I could not for the life of me remembe

Thank goodness for this article. I had seen a few of these tools and have been thinking about this topic for a while, but I could not for the life of me remember the names of some of the inventors or products, in particular Xanadu. Now I have it back thanks to this! There is a lot of meaty stuff to be had in this topic that I think we would all do well to understand as we make things.