This week on the Browsertech Podcast, I talked to Breck Fresen and Billy Littlefield of Row Zero about Row Zero, a browser-based spreadsheet that is built to be responsive even at billions of rows. To do this, they give each spreadsheet its own EC2 instance, which loads the entire sheet into memory. This is reminiscent of a session backend, and is a big contrast to what other browser-based spreadsheets like Google Sheets do, which is to run the spreadsheet engine on the client: Breck: Many peopl...