This is really interesting. I have not read it before."It also needs to be clearly, and unequivocally, stated that volitional action, “karma” is not the only causal factor in the universe, it is a mistaken view to maintain that “karma” is the only agent of causality whether it is defined as volitional or not. It is vitally important to note that Buddhism recognizes forces other than “karma” that affect the universe. In Buddhist cosmology, “Karma Niyama” is only one of five categories, known collectively as “The Five Niyamas,” that define causality. The other four are Dharma Niyama (the laws of nature), Irthu Niyama (seasonal changes and climate), Biija Niyama (genetic inheritance), and Chitta Niyama (the will of the mind). If we are to clarify our understanding of causality, we are required to pay attention to socio-political, economic, and ecological sciences. A sixth “Niyama” could even be brought into the picture to account for the social structures that have spontaneously or deliberately formed in all communities of sentient beings. While the modern “chaos theory” was not delineated in the Buddha’s time, as such, elements of its structure can be found in the Five Niyamas. Despite the prevalent misperception in the Buddhist community, even in so-called “orthodox” circles comprising clergy and teachers, that “karma” is the sole force active in the universe, “chaotic” forces are also present but rarely, if ever, mentioned, let alone taught, studied, or comprehended." (para before last)
http://www.buddhistchannel.tv/index.php ... 6nbMlt97s0
Karma is not the only determining factor? Is there any mention of this in Pali Canon?