Guest, it's an interesting thought, isn't it?
Much like I said in this video...
https://www.youtube.com/watch?v=S8-LlicY_N4
Pain and suffering is inherent in life... it's there as a DEFAULT. That's what we have to consider if we're to bring children into the world... why force an innocent soul into this world when we know the experience is wrought with pain and suffering? Sure, there are good times. But the bad times are equal in magnitude to the good times when they do occur. Optimally the bad times would occur very infrequently and we would be coasting along on either neutral or good times. But the bad times will happen, and when they do, our perception will be that they are just as strongly negative as the good times were positive.
Having said that, one could also argue the "zoomed out" aspect of things...
If you look at the planet from above, and watch it like a timelapse...
The human organism is a succession of lives upon lives, constant birth/reproduction/death...
We all came from a line of people who also came from a line of people...
Those people mixed in and we're created from whatever the essence of their experiences was.
We are the summation of our ancestors. We are the continuation of the human organism, therefore, our ancestors.
Perhaps before you stepped into this body, you were someone else who did terrible things. Maybe what happened to you WAS karma. But there's basically no way to verify that, and the theory really only holds weight because of the idea that we DO come from our ancestors, and maybe our ancestors did some fucked up shit.
We have to look at the WHOLE, rather than the individual lives... as the individual lives are merely a continuation of what was.
That said, I would be more on the side of 'suffering is inherent in life itself' to explain bad stuff that happens to babies. The whole karma (action/reaction) thing is fairly untraceable in any kind of practical way, whereas what we know FOR SURE is that indeed, suffering is inherent in life.
