Originally Posted by a_unique_person
That's another thing that might be legacy. Back in the bad old days, spreadsheets often took forever to recalc, and so the first thing you had to do when you started a new spread was to tell only to recalc when you pressed F9. I had spreadsheets back in the 1980s where I would press recalc. Then I'd walk down the hall, grab a cup of coffee, chat with the receptionist for a few minutes and come back to my office to find that it was 50% recalced. Might be time for a trip to the bathroom.
When I got my first 386 machine I remember freaking out when I hit recalc and nothing happened. Until I noticed that some visible numbers had changed. It had recalced so quickly that I didn't even see the "% recalced" message.