That's right. The important observation is that in OLTP queries are mostly small and can fit into one node. Neon architecture allows to scale read throughput by

That's right. The important observation is that in OLTP queries are mostly small and can fit into one node. Neon architecture allows to scale read throughput by spinning up read replicas (or read endpoints to the same storage in our case). Citus (Cockroachdb, Yugabyte) has distributed compute which allows to engage multiple nodes per queries. This helps with analytical queries AND with scaling writes. But you lose out on compatibility and predictability of performance. Shared nothing systems are no longer Postgres.