1.Smoking causes heart disease.
In this, smoking is the cause and heart disease is the effect.
This statement relates a single cause with a single effect [single cause – single effect relation].
2.Exercise prevents heart disease.
In this, exercise is the cause and prevention of heart disease is the effect. This statement also relates a single cause with a single effect [single cause – single effect relation]. Almost every human statement (scientific/philosophical/idiotic/ nonsensical) relates a single cause to a single effect.
3.Suppose that Mrs. Shiva happened to be a chain smoker and a good athlete. What would be the fate of her heart?
In this case, more than one cause (smoking and exercise) act in combination. Is there scientific method to predict the effect when more than one cause act in combination? Alas, one would say that there is multivariate analysis!
Every human logic fails predict the effect (outcome) when more than one cause act in combination. This is the source of every dilemma and confusion!!!
