Very, very true. Professional women these days are going to extreme lengths now to have children at older ages: IVF, etc. As it is, it starts getting difficult at around age 35. Yet, advanced education can easily last until your late 20s, and your late 20s and 30s are the time when you need to build your career.

If scientists could come up with a way of making women much more fertile up to, say, age 60 (in an affordable and reliable way I mean, current treatments are unreliable and horrifically expensive), I wonder what effect this would have on the birth rate.