AI era, the ultimate personal moat is "energy."

You can't rely on overexerting your body to make money, but rather on regular routines to improve efficiency per unit time.
Once you don't sleep well, your body is in a sub-health, fatigued state, which not only causes a cliff-like decline in judgment and attention but also makes you more prone to illness.
Sleeping early, waking early + maintaining exercise, both save your life and generate wealth.