sari

We are extrapolating machines in a world where nothing too good or too bad lasts indefinitely.  When you’re in the middle of a powerful trend it’s difficult to imagine a force strong enough to turn things the other way.

McKinsey research suggests that 20 to 40 percent of current teacher hours are spent on activities that could be automated using existing technology. That translates into approximately 13 hours per week that teachers could redirect toward activities that lead to higher student outcomes and higher teacher satisfaction. The area with the biggest autom... See more

To do great things, to really learn, you can’t shout suggestions from the rooftop then move on while someone else does the work. You have to get your hands dirty. You have to care about every step, lovingly craft every detail.

For Messenger, I think differentiation is extremely important and something we haven’t focused on yet. We’ve spent the past 6-12 months catching up to WhatsApp and competitors on table stakes like performance, reliability, pushability, etc. This work isn’t done and we will continue to do it, including catching up in areas like groups.

Football was overbearing, painful, and straight-up frustrating at times, but from day one on the football team, I felt like my contributions mattered.The opposite of love isn't hate, it's indifference. And I was aggressively indifferent to my work.

In the past, you might have spent 10 hours reading a book that took 4 years to research and write, a 3500x multiple on time! Today, a newsletter that publishes M-F and takes 30 minutes to read only provides a 67x multiple.