"This is the same reason men generally find large breasts in women attractive--it suggests strong maternal capabilities, even though that is not a rational correlation to make."

Sure isn't rational; the 'truth'? maybe not either

The amount of fatty tissue and the size of the breast are not related to the ability to produce milk

At the risk of raining on the attempt to rationalize some male obsessions with female breast size, breastfeeding can present special challenges for the large breasted woman and can, in extreme instances, lead to hypernatraemic dehydration in infants.