Exactly, the scalability usually comes with "population", no matter it's population of China/India, or the volume of data. Actually I did a quick research on yo

Exactly, the scalability usually comes with "population", no matter it's population of China/India, or the volume of data. Actually I did a quick research on your last question and it seems that a single cluster with NewSQL architecture has no theoretical upper bound on it (and since you mentioned TiDB, I checked its document which says "unlimited"), however, in reality I believe there is such a bound due to implementation-based limitation and/or performance concern.