Quantity has its own quality. Personally, my best working experiences were working twelve hours a day with substantial breaks for meals and exercise. Criticall

Quantity has its own quality. Personally, my best working experiences were working twelve hours a day with substantial breaks for meals and exercise. Critically, there was still enough time for a full night’s sleep. I was massively productive and in the best shape of my life. There isn’t time for anything else though. I have only been able to achieve that level of focus a few times in my career — all of them before starting a family. Now it’s all about efficiency, squeezing the most out of the precious hours I can focus on something.