, 16 June 2010 (UTC) 

 :::George Greenstein (the son, not the father) was a classmate of mine, and I still keep somewhat in touch with him. I guess sometime I should e-mail him to see whether he remembers our conversation of the early 60s or can be reminded of what his father actually said.) As I listened to what he said I had in mind Gamow's model of expanding space wherein buttons, representing suns, are spot glued to a gradually expanding rubber balloon.   17:33