During what time period did relational quantum mechanics start to become studied ?
As interpreted by R - theory , such " modeling relations " describe reality in terms of information relations ( encoding and decoding ) between measurable existence ( expressed as material states and established by efficient behavior ) and implicate organization or identity ( expressed as formal potential and established by final exemplar ) , thus capturing all four of Aristotle 's causalities within nature ( Aristotle defined final cause as immanent from outside of nature ) .