Daniel Ingalls is a silent hero. From the description in that YouTube video: """ Dan Ingalls is the principal architect of five generations of Smalltalk envi

Daniel Ingalls is a silent hero. From the description in that YouTube video: """ Dan Ingalls is the principal architect of five generations of Smalltalk environments. He designed the byte-coded virtual machine that made Smalltalk practical in 1976. He later conceived a Smalltalk written in itself and made portable and efficient by a Smalltalk-to-C translator, now known as the Squeak open-source Smalltalk. Dan also invented BitBlt, the general-purpose graphical operation that underlies most bitmap graphics systems today, as well as pop-up menus. His most recent work, the Lively Kernel and Lively Web, is a live graphics and programming environment that runs entirely in a browser. Able to save its results and even new versions of itself as web pages, if offers the promise that wherever there is the web there is authoring. """