[WorldMaker]

Which reminds me that I need to update my demo, mentioned in this blog post, given the JS has somewhat bitrot since 2015: http://blog.worldmaker.net/2015/03/17/compradprog/

My theory, also described in the blog post, and which I felt like the demo demonstrated when its JS worked, is that the nice thing about radial progress bars is that with spin and "tail" movement you can use a radial progress bar for composite progress (progress of multiple individual tasks with defined progress composited together, including cases of "task discovery" where progress may only start later).

I felt that when done right it doesn't violate user expectations ("forward momentum"), and it's an interesting merger of the spinner and progress bar that could be used in some pretty complicated situations.

I should get that demo working again.