Expiration date.
Everyone has an expiration date.
At any given point in time, you'll want something from someone else. A friend, a lover, a partner. But the time won't be right for them. And it's because that moment is gone. There's only a narrow window in their lives when the time is right.
In startups, there's only a couple of years when you're hungry and foolish enough to start a company. Even if you stay ambitious later in your career, after a few years of comfortable life, the cofounder you once wanted lost the drive that got them there.
In romance, we hit panic mode when we get closer to our 30's. There's no more time to experiment and date anymore. It's a race against the biological clock now.
Your family too. The memories spoken by your parents, or perhaps locked away will disappear forever when their cognitive faculties fail.
You'll expire too. Your energy to stay up all night. Your sex drive. Your hunger to work on something really hard. Your curiosity. Your naiveté. It has an expiration date.
Start that company. Go for the kiss. Save what's soon to be forgotten. The best moment was in the past. But the right moment is now.