Stable/unstable/negative/positive feedback loops are technical terms in control theory (https://en.wikipedia.org/wiki/Negative_feedback https://en.wikipedia.org

Stable/unstable/negative/positive feedback loops are technical terms in control theory (https://en.wikipedia.org/wiki/Negative_feedback https://en.wikipedia.org/wiki/Negative_feedback). I'm using those terms for specific reasons. I don't quite see what you're objecting too. Studying biology in the context of systems and control theory is a pretty well-trodden path (https://simple.wikipedia.org/wiki/Krebs_cycle https://simple.wikipedia.org/wiki/Krebs_cycle). Much of modern pharmaceutical research is actually about uncovering the chemical governing loops (another technical term) and affecting them to achieve positive outcomes. Cell division is an unstable positive loop that requires dampening with negative feedback loops at higher organization levels. When those negative feedback loops break down you get an unstable positive loop in the form of cancer. So you see how having cell division in a multi-cellular context can not be "cured" of cancer? You'd need to stop cell division and somehow figure out a way around entropy. Cells divide to renew/reset and shed accumulated environmental damage. So no matter what you do as long as you have a system organized around unstable processes like this you will always have a control problem when the negative control mechanisms stop working.