[Sunnybayes]

I have a way of defining good and evil... this is related to sin in my eyes.
I'm in the rough stages of trying to define sin in terms of physics and thermodynamics.

From my summary of my framework:

Evil is caused when hierarchy on some level in some system (social, relationships) is destroyed. Good is when hierarchy is created.

This explains why something may be "good" for one system and "bad" to another, and how its a spectrum of the two. Infinite amount of examples:
-An employee gets laid off: good for corporation, bad for his family
-Flip burgers at McDonalds: good for McDonalds, bad for individual if he is creative, good if it is his first job to gain experience
-Eat a cow: Good for human, bad for cow. Eat a plant, not as evil because its not as complex as a cow.
-Terrorism vs USA: USA is evil in eyes of terrorists because it swallows other systems up, terrorists are evil to USA because duh.
-Water is good because it sustains the hierarchies of life but slightly evil sometimes because it could drown you.

So perhaps sin is related to not choosing the choice that optimizes "goodness" in some system.
Perhaps sin is only related to the system of your individual mind, or perhaps it is related to the system of the society that you are in.
Or perhaps the sin is in the context of the system that this your own church.

Also

However, is it wrong to kill someone's digital character in a video game, or watch movies where people are hacking each other to pieces?

I guess you could argue that in the context of the system that is the video game that deleting someone's character is a sin. But then in the system of the outside world that sin that is localized in that game does not matter or is consequential.

Though deleting someone's online character might be considered as a sin as well, because it took the individual who created it lots of time to make it so it destroys the complexity that was apart of that person, but then again it might be considered good in the context of the society of that person because now that person perhaps will be freed from an addiction so that he can contribute to society better.

So it really depends on your point of view how you define sin.

And another example of murder.
For a murderer who got jealous of another guy for going after his girl.
In the system that is the girl and the murder, killing the other guy is not a sin because it preserves and would perhaps strengthen the relationship between the two.

In the system of the mind of the person who was killed it is a sin.

In the eyes of the girl, it may or may not have been a sin. It depends on what system( she with what guy) she values more.

In the system of the society it is a sin to murder because now there is one less person able to contribute to the society. It would have been better if the 3 involved could have been smart enough or concious enough to work things out so that perhaps one guy would get the girl and then the 3 would work together to help out the guy who needs a girl now.

Now in the system that includes all religions and the "global" society, it is a sin if religions have "holy" wars to fight against each other, because there would be one less religious system to contribute to the global society if one side wins.

But again, if the religions are not "concious" or my new buzz word "synergetic" enough to look past themselves and see themselves as part of a global society then each side will not see destroying the other side as a sin or evil, but will instead see that destroying the other side as the best way to maxize goodness because they think that it will preserve and strengthen their own system because they will have access to "resources"