Does like big breasts on women a 20th to 21st century ideal for us men?
Yes. Men throughout history have loved big breasts. I don’t want to generalize to much, because obviously every culture is different. However, first let me point out that you are wrong, “forefathers” had plenty of big boobs to “stare at”. Bigger women in general were the norm for beauty. AND when I say bigger I mean bigger hips bigger buts, bigger breasts. Not fat mind you, just very curvy. This is believed to come from the notion that these attributes made for better childbearing. If you don’t believe me take a look at some of these image of famous art dating bank thousands of years. Just think of how big Mona Lisa was, and for a long time she was considered very beautiful.