I didn't claim that I am dealing with a gigantic workload (total QPS is a lot higher btw). Rather I claimed we are at the point where a distributed database is a good idea if the business wants to continue to scale without major database trouble. I gave the specs so others can understand the parameters of the evaluation. If Vitess didn't perform well at that scale, I can't imagine the pain at Slack and Twitter scale. I don't envy them at all.