No mistake

The difference between a mistake and a sin is that a mistake should be corrected but a sin should be punished. Punishment means to inflict suffering.
So sin is a mistake leading to more mistakes. This is bad. It is obvious.
Sin is a very popular idea. Few so old ideas are so popular.
Sin is founded on the idea of weak mind. As mind is weak, it needs the support of threat of punishment in order to do the right.
If mind was strong it would do the right by itself.
Traditionally, mind was weak for most people. Education was bad, access to knowledge was bad and temporary distraction was abundant and unavoidable.
Now the situation is different, and it is changing rapidly. The problem is not lack of information but too much information.
So the idea of sin and punishment is getting outdated. Instead we need communication and respect for knowledge.