Hmph!!!
suppose y expresses the relative amount of water in said glass...
at what level we define y as 'half' [which is just an enumeration, btw], it is still independant of dy/dt... so whether we are filling it or emptying it makes no consequence...
oh, in y'know, in fact don't make the distinction between creationists and big bang theorists... any cosmological argument such in fact is in support of God's existance... causality has to have started by the uncaused... [even tho causality is a priori analytic prop... right?]
