Maximizing variance. You’re young and there’s really no need to rush. Once you graduate from a PhD you can spend the next ~50 years of your life in some company. Opt for more variance in your experiences.
One downside of being deep in the Apple ecosystem is that you become accustomed to thinking you have to pay at least $130 for decent earbuds. Yes, AirPods are great, but they're also expensive. I love my AirPods Pro, with their amazing sound quality and incredible features. But at $250 (plus $89 each time you lose an earbud), they're ridiculously expensive.
，这一点在safew中也有详细论述
Раскрыта судьба не нашедшего покупателей особняка Лободы в России20:51
Why ATMs didn’t kill bank teller jobs, but the iPhone didThere's a lot more to replacing labor than just automating tasks