I read jajvirta as saying that the occupation itself doesn’t produce positive externalities for mankind, unlike productive work in physics research or something.
Productive work in physics could produce negative externalities if humanity cannot be trusted with new physics results. Hell, even math education could produce negative externalities!
I read jajvirta as saying that the occupation itself doesn’t produce positive externalities for mankind, unlike productive work in physics research or something.
Its not only a lack of positive externalities, but the presence of negative externalities. Your gains are someone else’s losses.
You provide entertainment to people. Both players chose to play so even if one player has a negative expectation in $ he might enjoy playing the game.
Productive work in physics could produce negative externalities if humanity cannot be trusted with new physics results. Hell, even math education could produce negative externalities!