So what’s “Facebook scale”? Is there an edge TPS number? Number of discrete major services? If you are consistently doing 10TPS on 3 services, sure. But many s

So what’s “Facebook scale”? Is there an edge TPS number? Number of discrete major services? If you are consistently doing 10TPS on 3 services, sure. But many systems are bigger than that. Everyone wants to be big. You can either frontload those problems, and risk drowning in irrelevant complexity, or defer them. The problem with deferring is that switching lanes appears like it will be expensive and time consuming. The secret is that if you solve actual problems, rather than dreams and future hopes, the answers are almost always obvious. The work may be painful and people may be angry, but the rationale will be clear.