How would you apply progressive disclosure to UI copy and tooltips?

Tests whether you tier copy by expertise rather than exposing every definition at once. Strong answers describe a primary layer with plain labels and concise tooltips for the common case, then defer advanced settings and edge-case definitions to an expandable section or secondary sheet. They tie this to NN/G findings: visible items signal importance, novices avoid errors by skipping irrelevant options, and experts save time by not scanning rarely used explanations. Red flag: insisting all help text stay visible to minimize clicks.