[wiwillia]

Founding and being the CEO of Shopify, a $48bn company and one of the best-performing stocks of the last few years, isn't "the top"?

Different people have different styles that work for them. Some people love to work 60+ hours and are productive doing it, others get more and better work done when they limit themselves to 40 and take time off. What works for you/Tobi/John doesn't universally work for others.