Have some specific projects and ideas to get started on:

- encode the equations in hyperphysics
- parse (input) latex math and mathml using rust
- runtime to evolve/integrate systems, then visualize output

Open questions:

- encoding of functions, operators
- atomic unit of symbols/variables. eg `R_0`, `R_t=0`, `R` confusion
- "gradual typing" of units

Other half-baked thoughts:

- observable HQ demos
- add equations/models to wikidata
    => raw equation as mathml/latex?
    => also 
- scrape out latex/equations from wikipedia dumps
- probably going to be dual rust/racket. I think that is ok?
- those epidemic model interactive tools were really nice