How fast can a "scaled to zero" database start up? Does Neon use a "uninitialized hot spare" strategy to reduce startup latency like crdb? How much memory do t

How fast can a "scaled to zero" database start up? Does Neon use a "uninitialized hot spare" strategy to reduce startup latency like crdb? How much memory do they expect a typical single postgresql compute instance to take? I saw that Neon is targeting 'thousands' of postgresql processes per server, though with giant multi-TB servers these days that doesn't really narrow it down. Are the postgresql processes multi-tenant as well, or is multitenancy isolated to the storage layer? --- Heikki from the Neon team presented a talk about why they chose to develop Neon in Rust and what their experience was in Rust Finland 2022. https://www.youtube.com/watch?v=kAQeout-mh8 https://www.youtube.com/watch?v=kAQeout-mh8