The spreadsheet is sort of one of those insane breakthroughs where it really makes programming (functional at that) really easy to grasp. And you can iteratively and intuitively add hundreds of variables and logic gates.
That was my reaction too. I have a google sheet for bread that allows for different batch sizes and displays out baking instructions in english. This is what a cell looks like: ="mix "&D3*B$1&" grams of "&C3
I can look at the sheet on my phone when making bread. Sheets also now caches off line.