> Are there things you can express with it that couldn't be expressed in S-expressions? No. But that may be like asking "is there something I can do with the x

> Are there things you can express with it that couldn't be expressed in S-expressions? No. But that may be like asking "is there something I can do with the x86 that I couldn't do with any Turing Machine?" Pragmatically speaking when you factor in UX and time there are things that are dramatically faster with Tree Notation versus S-Expressions. For example, here's the editing experience for an upcoming DSL to enable non-programmer researchers to put together topical exploratory data analysis tools: https://github.com/treenotation/random-demos/blob/main/Screen%20Recording%202020-12-21%20at%206.51.02%20AM.mov https://github.com/treenotation/random-demos/blob/main/Scree... Lots of things that are muscle memory to Excel users (drag to fill, copy/paste blocks, move columns and rows, et cetera), would be very ugly/hard to do if we were using paren based S-Expression notation.