Happiness = S + C + V

On the metro ride this morning, I was reading the free newspaper "Express." There was this article that spelled out the secret formula to happiness. Yes, so it seems simple, that we can reduce everything to a mathematical equation.... but then reality hits

S is your biological disposition toward being happy, aka your "happiness set point"
C represents the conditions in which you live, some of which are fixed ( i.e. age or gender) and some of which you can change (i.e. relationships)
V stands for voluntary activities that you engage in i.e. work, vacation etc.

What I mean by reality is - it looks all simple when we reduce all the factors down to three variables. However, within each variable, there are just too many factors. For example: C really equals i.e. X(age) + Y(gender) + Z(relationship) + A(city you live in) + ...etc. So what is the point, in the end, even after knowing the mathematical equation - there is no way for us to add up all the different factors we need to make ourselves happier - or even to add it up to know what out happiness level is..... hmmm.......