Why does the essentialist thing matter? Because like the tape recorder and the computer, we LEAP to thinking that how people perform at *tasks* is equivalent to *how people are.* This is a really dangerous assumption that leads into a lot of grifter, bullshit thinking. For instance, thinking that measuring that people who are essentially undermotivated to achieve successful learning (already a challenging ask) in a laboratory session is the same thing as measuring their "ability"