Update reasons-for-rewriting-in-rust.md

assets/reasons-for-rewriting-in-rust.md

@@ -1,15 +1,15 @@
-## Reasons for rewriting Insect in Rust:
+## Reasons why I rewrote Insect in Rust:
 
-  - Rust is much more popular amongst developers => more possible contributors
-  - A redesign from scratch would allow me to focus on areas of improvement:
-      - Introducing the concept of physical *dimensions* into the language
-      - Experimenting with a static dimension/unit checker
-      - Allowing user-defined units => move all of the unit definitions to the language
-      - Better parser errors
-      - Automated tracking of significant digits
-      - Support for rational numbers? Complex numbers? Intervals?
-      - Support for binary and hexadecimal numbers, bitwise operators, etc
+  - Insect is written in PureScript, which is a niche programming language with a (fantastic but) small community. Rust is much more popular amongst developers, so
+    it is much easier to find contributors in a Rust project than in a PureScript project. This has been an actual problem with Insect, since I got multiple comments
+    over the years that people wanted to contribute, but couldn't.
+  - A redesign from scratch allowed me to focus on the following areas of improvement:
+      - Introducing the concept of physical *dimensions* into the language (see https://numbat.dev/doc/dimension-definitions.html)
+      - Adding a static type system (see https://numbat.dev/doc/type-system.html)
+      - Allowing users to define their own units (https://numbat.dev/doc/unit-definitions.html)
+      - Being able to define constants and the whole unit system in the language itself (https://numbat.dev/doc/prelude.html)
+      - Much better error messages
       - Support for notepad-style computations (Mathematica/Jupyter style)
-  - The PureScript implementation is *slow*. A Rust-based parser & interpreter could be much faster. Not just
+  - The PureScript implementation is *slow*. Numbats Rust-based parser & interpreter is orders of magnitude faster. Not just
     on the command-line (startup speed!) but also on the Web (via WASM)
-  - It would be a nice playground for a WASM project
+  - I always wanted to experiment with WASM and Numbat was a perfect excuse for this.