10+ years ago I worked at a smallish company and we had a table with over 500 million rows. This was on a high end system with several spinning rust disks in a

10+ years ago I worked at a smallish company and we had a table with over 500 million rows. This was on a high end system with several spinning rust disks in a raid 10 and 256 gigs of RAM. Billions in modern hardware seems quite reasonable.