to darkware: you firmly believe universe is determinist... it could very well not be the case... in fact lately there is a trend to define the properties of the universe in a "to an observer that has/can...the universe may behave like... with a probability of..." fashion instead of "the universe is and behaves like this, always, no exception"

causality, logic... we humans havent even defined time in a rigurous enough way (we do know intuitively, and there are some logical/mathematical properties of it defined scientifically(not all and maybe not rightly done but each good for their explicative properties)) but i got really amazed when i knew that we havent managed to make a rigorous general definition of time itself but that we are still discusing about its properties...