Had overspeculation in securities been the only force operating, we should have seen recovery many months ago, as these particular dislocations have generally readjusted themselves.
Exact requirements may vary depending upon the artist or instructor, but an experienced model will not speak, wriggle, scratch, or readjust during the pose.
In fact, orientation for incoming students is a mandatory week-long writing and thinking workshop, designed to readjust students to pedagogical, cooperative bidirectional learning.