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@trilobyte It's amazing that VisoCalc invented many of the standards that continue today, especially A1 addressing.

When I show my students the history of spreadsheets, I start with VisiCalc.

But VisiCalc can't do forward referencing. I'll show that in the next video. That's why there was the recalc key shortcut.

We take fwd ref for granted today, not there in VisiCalc. (To be fair, it would have been a big performance problem on the Apple II.)