The concept of events not determined in a peremptory manner, but that the possibility or tendency for an event to take place has a kind of reality - a certain intermediate layer of reality, halfway between the massive reality of matter and the intellectual reality of the idea or the image - this concept plays a decisive role in Aristotles philosophy ordeal . The elements, therefore, could reasonably be the different kinds of electrons and quarks. We can then begin to understand some of the more mysterious quantum features, such as the nature of measurements and the reasonableness of non-localities. For Heisenberg, as he later explained it, such probability wave are.a quantitative formulation of the concept of dynamis, possibility, or in the later Latin version, potentia, in Aristotles philosophy. Perhaps it is even a self-contradictory one, for is not to call it pure potency to give it some determination? There have been doubts whether such a concept is intelligible, but fortunately it is not needed for the present enterprise. In his ensemble interpretation of quantum mechanics, Born tried to take these probabilities as relative frequencies in an ensemble. Now, the actualities produced after a change are not the new substances (for substances are forms of propensity), but are the remains of the previous propensities (the previously interacting substances) at previous places ordeal space-time. The wave fields were not actual fields, but only determine the probability of the presence of quanta. That is, the actualities produced are always in the past region of space-time, compared to where there are propensities still operative. The objects of our perception are the propensities at the moment when they produce effects. We need only the concept of propensity or power, as we only want to have a concept of the logical subject or substance of particular things. This is a extension of Aristotles approach (described in section. Even if we are have only one radioactive atom, for example, surely some meaning can be given to the likelihood of the decay event occurring in different intervals of time. An ensemble here is a real or imagined collection of systems that are as similar as we can make them. His general principle about elements is that they are the underlying ordeal in forms of combinations of prime Australia No Deposit Casino Bonus List As in Wallace, the elements are thus ordeal underlying propensity in forms described by combinations of prime qualities, and these basic qualities could be electric charge, spin, quark colour, etc. To conclude this chapter, I should point out again a certain unconventionality about the logic of actualities and potentialities as it has developed. They may often have been unknown, but that does not mean that they are unknowable. In classical physics, what are actual are the corpuscles themselves, but (for a variety of reasons) that view is no longer satisfactory.