As systems grow, it becomes exponentially harder to do anything. What to you may sound extremely simple and easy on a small SaaS app, at Airbnb scale (after sev

As systems grow, it becomes exponentially harder to do anything. What to you may sound extremely simple and easy on a small SaaS app, at Airbnb scale (after several years of development) it really requires several highly talented engineers to deliver without blowing everything up.