> Did they stop being mathematicians when calculators were invented?

After learning to use a calculator, did it promptly become laughable to do arithmetic by hand (or even in your head) if yours broke or otherwise became unavailable?

On any scale that matters, absolutely. You think a physicist or accountant is going to start hand crunching their 800 equation spreadsheet when their laptop dies, laughably absurd. You think I am going to spend several hours writing a couple hundred lines of code when I'm now normally doing several thousand per day, laughably absurd.