# sim-lib-view-doc
In one line: it is a writing surface for scientific articles where equations, figures, and live results are real parts of the page.
## What it gives you
This lens gives you a proper authoring workspace for technical writing, not a plain text box. A document is built from meaningful blocks -- sections, prose, equations, figures, tables, citations, and blocks that run live inside the page. You navigate by an outline and arrange blocks on a canvas. You can look at the same article two ways at once: the clean formatted reading view and the underlying source, side by side, each a lens on the one document. Because the document is a single stored value, an embedded live block shows a real computed result right where it belongs in your argument.
## Why you will be glad
- You write with equations, figures, and tables as first-class blocks, not afterthoughts.
- A live result can sit inside the page and stay tied to the work that made it.
- You switch between the reading view and the source view of the same article.
## Where it fits
This is the authoring corner of the SIM browser workspace. It defines the document as a stored value and offers the formatted, source, and export lenses over it. It relies on the scene and view crates to display and edit, and on embedded blocks to pull in live runtime output, so a paper and the computation behind it live together in one place.