Equation 24 · Part 2 · What Interpretability Actually Costs to Do at Scale
subscript
subscript
What this part means
The lower label selects a particular version, component, or indexed member of the quantity. For example, x₀ and xₜ can be values at different positions.
Its job in the formula
A subscript distinguishes a version, component, step, or member of a quantity. It does not automatically mean multiplication.
Full expression→subscript→Article meaning
The passage around this formula
and the field’s own most careful examples put each measured not in minutes but in dedicated researcher-days once ambiguity has to be resolved rather than merely observed. If a frontier model implements even a low four-figure count of distinguishable, individually claim-worthy behaviors — a conservative floor, not an estimate anyone has actually published, because nobody has enumerated a frontier model’s behavior inventory any more than its feature inventory — then summed across even a small fraction of them outruns any realistic standing research team within a single model generation, let alone across the several generations a lab now ships per year. This is precisely…
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
Sources cited in the surrounding passage
These citations provide research context; check each source for the exact claim it supports.