Misreading some derivations you did months ago and fundamentally questioning whether or not you know what maths is feels like a uniquely grad-school thing.
It’s not inspiring when you’re stuck in an elevator and your compatriots ask if it’s your first time.
I've heard many people say they need deadlines in order to get work done. Sometimes I wonder how much of a deadline's magic is just brutally enforced time-boxing. If your project necessarily has to end in a couple days, you'll allocate your time effectively. Time is scarce; you need to make the most of it! Conversely, long projects with vague deadlines have a habit of expanding to fit the time you give them.
The neighborhood toy store where I grew up is now a vape store.
I guess communities do age with their residents.