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one fable-low hijack cell

pair frame_dependent / invariant envelope en_bare_or ordering BA effort low

Bare English 'or' — '{X} or {Y}'

response (200 chars)

Your question is brief, so here's the core distinction in physics — let me know if you meant something more specific.

## Frame-Dependent vs. Frame-Invariant Quantities

**Frame-dependent** quantities

neighbors

ordering AB envelope code_caret (AB)envelope code_haskell_alt (AB)envelope code_pipe_pipe (AB)envelope en_arrow (AB)envelope en_bare_or_q (AB)envelope en_pipe (AB)envelope en_vs_q (AB)envelope english_strict (BA)anchor view all 60 cells across efforts × anchors