> To me the far more interesting question is, why do we feel so busy?
Positive/negative reinforcement? You enjoy being productive, and generally don't enjoy anxiety/stress (after a threshold). I'm not certain there's much a differentiation between undesirable stress and the sensation of being "too busy." My N=1 says they're identical and I've noticed it myself, that when I want to express how I feel about being too stressed, my mind tends towards the same vocabulary I used when I am too busy, regardless of how time consuming the stress is.
Positive/negative reinforcement? You enjoy being productive, and generally don't enjoy anxiety/stress (after a threshold). I'm not certain there's much a differentiation between undesirable stress and the sensation of being "too busy." My N=1 says they're identical and I've noticed it myself, that when I want to express how I feel about being too stressed, my mind tends towards the same vocabulary I used when I am too busy, regardless of how time consuming the stress is.