For some reason Doug Glancy’s Excel Blog has escaped my attention up till now, but having a browse today, I discovered this loopy animation:
which would not have been out of place in Douglas Hofstadter’s “I am a Strange Loop”
I really should have sent Doug G. a copy of this letter: A Tail of Two Letters …
But anyway, the Blog Roll now includes Sumbuddy.
And three more links from Alfred Vachris: