Ha!!!!
This made me laugh outloud. Or, it could be the prescription medication I'm taking.
But either way, even if I have completely misunderstood ATS's point, I think it about it like this . . .
If you run around hitting people in the head all the time, statistically speaking, eventually someone is going to hit you back.
Now, perhaps I am being too flippant or perhaps I don't have a clear understanding of Karma, but to me that is the theory in a nutshell. If we do bad stuff, we can expect bad stuff to happen to us in return. Well, duh. Statistically speaking, bad stuff is eventually going to happen to us all, regardless of how right we are with the universe.
Yeah, that's pretty much what I meant. I think, like a lot of common-sense ideas, people end up applying fancy labels, and more fancy extra-baggage, to it to give it some kind of mystical or magical propery.
Essentially, the idea that if you do bad things to people, somebody doing something bad to you is more likely - or if you do good things to people, somebody doing something good to you is more likely - is a very straight-forward, common-sense concept which gets supported through experience.
Of course, people have a need to make the concept take on a larger work load than it can handle, so they take this concept that works, and attempt to use it to explain all interactions, in order to give a larger meaning and structure to random events.
What about the infant born premature who lives a few days only before dying a painful death? Was that karma? Was the baby paying for sins in a past life? If so, that sounds kind of like a cop-out sort of answer to me. A little-bitty baby that never did nothing to nobody endures a torturous existence for just a brief span of time before dying . . . had to be that baby was a dipwad extrodinaire before he was born this time around, huh?
Yep, some crap just happens. Not everything has any larger purpose, meaning, or explanation. This seems a hard concept for many people to accept, though.