In my Western world, I often face a situation in which I am expected to "proof" that the law of karma does exist.
I often say then that I can't do that, I can't prove karma.
But everyone can prove it to themselves by logic, inference and experience. It is up to everyone to look at what the Buddha thought on karma, with an open mind, and find out for themselves. In that process I can share with others what I have learned from the teachings on karma, it is about all I can do.
I also say this: in other cultures, the opposite question would be asked to anyone going there and telling people around that the law of karma "does not" exist... They would be very skeptical and ask the opposite question: "can you prove that the law of karma does not exist?".
Now that is a real challenge, for there are many approaches to reach at least a founded opinion on the law of karma as being, at least, the most logical possibility, but there is absolutely no logic, nor inference, nor experience that can back up or prove that the law of karma does not exist.
So, this can become another debate in Western culture environment: "I can't prove to you that the law of karma is real, but can you prove to me that it does NOT exist?"
Then, we take every single fact of life and align them with the teachings of the Buddha and we see if they can be explained by the law of karma and we find that every single one can be explained.
We do the same and try to align experience and facts with the posit that karma does not exist, and we find that nothing can prove such thought.
Then we have the usual answer: randomness.
I have been born random in this body, my parents are random, my school is random, my wife is random, my jod, my education, or my lack of it, my disability, my car accident was random, my broken leg, my illnesses are random....
It is usually the same scientific minds that are trying to disprove karma that come up with so many irrational, un-scientific conclusions that randomness is the rule.
Let's say it then, even the big-bang was random...
Randomness is the only answer to find after we have been on the look-out for causes and as we get closer to find out directly the reality of the law of karma and yet refuse to face it.
So I'll debate here:
Question 1: "CAN YOU PROVE THAT KARMA DOES NOT EXIST?"
Question 2: "WHY IS IT SO SCARY TO ALLOW OURSELVES TO SHIFT AND RECOGNIZE THE REALITY OF KARMA, WHAT IS MAKING US HIT THE 'PANIC BUTTON' WHEN WE GET CLOSER TO THAT REALIZATION? WHY?"