But it is a great proxy for the value that it brought to our society.
Put another way, how else would you put a number on the value that it brought to our society? You could use the number of practitioners, but that wouldn't rank compared to other things those practitioners do.
Put another way, how else would you put a number on the value that it brought to our society? You could use the number of practitioners, but that wouldn't rank compared to other things those practitioners do.