At scale, I can definitively say that yes, Postgres becomes the bottleneck for this. The company I worked for was using the same libraries, the same stack. Re

At scale, I can definitively say that yes, Postgres becomes the bottleneck for this. The company I worked for was using the same libraries, the same stack. Re: optimize it later, your persistence model is the hardest thing to change once it’s built and full of data. I strongly recommend getting that right the first time.