I'm curious Tail, whether you follow your Dr's advice on things like eating healthy and exercising...
Because all of your questions could easily be applied to that situation.
1. What percentage of my life-span will be due to my diet/exercise vs my genetics?
2. What percentage of that is specifically from eating McDonalds?
3. If I stopped eating McDonalds yesterday, how long would I live?
Yet I'm gonna bet that you take a Dr's recommendation that you eat healthier, exercise more with some greater amount of seriousness. You may even listen to them, despite the fact that eating healthier is more expensive, and exercising takes time which could be used to earn money.
The point, in case you missed it, is that answering those questions isn't actually necessary to show an understanding of the causality between two factors. It certainly would help in quantifying, but isn't necessary to at least know what direction to head. And while just like in environmental discussion, there is the health nut who thinks quinuoa shakes and 5 hours of exercise daily is going to make him live forever, you also don't want to be the idiot who eats 1lb of bacon daily in front of the couch and is surprised when he dies of a coronary at 50.
victor809 wrote: