Battery

• The 80/20 method: You can get 80 % proficiency in a subject in about 6 - 12 months.
• The 10,000-hour rule: You can become an expert at something if you spend 10,000 hours of deliberate practice on it. 

To go from zero to 80% (good enough) requires a different...

“I would say my sneakers are a productivity tool, because I used to wear pointy dress shoes all the time, and the day I switched to sneakers, it just made my life so much more efficient. No more feet pain, shoe cleaning, or buying new shoes every few months.”

• If you’re trying ...

An introvert hangover can leave you too exhausted to deal with people IRL, and can last anywhere from a few hours to a few days or more. If you experience the latter, Dr. Dow says you really know you overdid it and seriously need to prioritize some alone time. An introvert hangover can even make ...