Will there also come a time when 60 becomes the new sexy?
And if we live to be well over 100, are we really going to have just one partner for all that time? Dubner says you shouldn't expect to marry in your 20s "until death do us part."
"Do we kind of ritualize a kind of serial marriage culture in this country, where you have your marriage in your 20s and 30s, where you have the children, then your marriage in your 40s and 50s where you have a partner with whom you do midlife stuff, and then your marriage later on?" says Dubner.
"I think there's going to be a lot of changes in what economists would call the marriage market or the love market."