Nothing Indeed!

How our brains confuse the metaphorical with the literal - for instance:

“Volunteers were asked to evaluate the resumes of supposed job applicants where, as the critical variable, the resume was attached to a clipboard of one of two different weights. Subjects who evaluated the candidate while holding the heavier clipboard tended to judge candidates to be more serious, with the weight of the clipboard having no effect on how congenial the applicant was judged. After all, we say things like “weighty matter” or “gravity of a situation.””