I asked Claude.ai to "write me a nice little spreadsheet program that runs in the browser." Here it is. It looks like a spreadsheet app but it's missing most of the really good commands, like defining the value in one cell with the sum of two other cells using point and click. If you go down this path, ask it to keep a user's guide current, and then ask it to put in features, and just describe them in standard spreadsheet terminology. The trouble starts when you want to make something that doesn't have a standard terminology yet because it's new. #