NEWS YOU CAN USE: Why half of the life you experience is over by age 7. I remember in law school, the first three weeks of my first year seemed subjectively about as long as the rest of the three years.

But as for age, I think that time is actually going faster every year — probably because of cosmic inflation — but you don’t notice that until you’re older because it takes a while to have enough years of experience to have perspective. I eagerly await my vindication by physicists.