Quote Originally Posted by rory_20_uk View Post
One is not stable equilibrium - often it varies as they undergo tests and of course they can both improve and deteriorate. The time frames might well be different but the principles are identical.

To clarify, I'm not asserting there is a stable equilibrium as a rule, but where there is one - such as where maintaining the procedure without further changes in condition entails indefinite perdurance - the nature of termination is clearly different.

It's the difference between 'if I stop pushing this button you will die' and 'if I push this button it might reduce mortality/morbidity'.