KARMIC CONUNDRUM
I find karma to be a most impenetrable subject. If it exists, it only does so in the mind of God. I can't imagine it's measurable and wouldn't consider it wise even if it were. How do you reduce generosity or injury to a quantity that will come back to you proportionately at a future date? I can see how the life one lives and the world they help make can and will come back to them in the end, but I don't think there's an underlying science waiting to be discovered or deciphered.
Besides, to do so would miss the point. In my mind it would render it akin to Christian salvation. Striving to rise above the negativity or share something good would quickly become focused on saving my own skin or attaining a certain level. This is childish and does not feel like real understanding to me. It's vital I seek goodness for entirely different reasons. I do value my life, and I do care about what happens to me; however, it's so clear to me that my reasons for being must originate somewhere else. The good things in this world are larger than me - love above all. If I find these things and let them be what they are because of what they are, what happens to me will take care of itself.