What makes you think that the careful body balance of the buddhist monk and the graceless laying down of the couch potato are the same thing? They both are call

What makes you think that the careful body balance of the buddhist monk and the graceless laying down of the couch potato are the same thing? They both are called "sitting" because share the same pivot point (the buttocks), and both are motionless too; but one requires much more effort and energy expenditure than the other.