documenting my frequent pivots

• survey all topics in Physics. [See this 2017-07 post.]
• investigate refactoring the database from JSON to RDF. [See this 2020-12 post.]
• goal: add a new derivation to the Physics Derivation Graph to identify bugs and inefficiencies in the workflow
• instead of entering a new derivation, new goal is to create tutorials for an existing derivation. [See this 2021-08 post.]
• before creating tutorials, write a "gold standard" for one derivation (then create tutorials). [See this 2021-07 post and this page.]
• instead of fixating on a "gold standard," refocus on the original intent of the project: connecting expressions from the breadth of Physics. [See this 2021-08 post and this page.]