See my obviated reply to cousin_it: yes, the physicists are wrong to make this inference, and it’s because they are not using the appropriate model-to-reality mapping, which makes its usefulness appear questionable, and this negative appearance is further worsened when they get to the point of literally saying “Humans holding heavy stuff isn’t work.” (Which is wrong in both the lay and the technical sense.)
See my obviated reply to cousin_it: yes, the physicists are wrong to make this inference, and it’s because they are not using the appropriate model-to-reality mapping, which makes its usefulness appear questionable, and this negative appearance is further worsened when they get to the point of literally saying “Humans holding heavy stuff isn’t work.” (Which is wrong in both the lay and the technical sense.)