I have more mongodb experience than postgres but my impression is that a lot of the json handling I ended up doing in mongo would have been easier/reliable in postgres

Yes, you obviously can’t fit 10 TB of data onto a developer laptop. However you’ll run out of disk before you run into Postgres issues.

With an SSD cache + a few external 20TB hard drives I think you can easily make it to 40TB with redundancy.

Yes, you obviously can fit 10 TB of data onto a developer laptop with 10tb of external storage. However you’ll run out of disk before you run into Postgres issues.

I was kinda agreeing with you :-D