One of my case studies in life is Charlie Munger, he’s Warren Buffet’s business partner. He speaks of how we always ignore second order effects. In other-words, effects of effects of effects.
He means, that effects also have effects which have effects. That sometimes you do one thing, that will screw up your entire life. You make a girl pregnant before you are ready to manage a kid, because of that, the girl fails to complete her studies. Since she’s failed to complete her studies, she finds it hard to get a job. Because she can’t get a job, she probably becomes a prostitute. Because she’s a prostitute, she doesn’t give the child enough care. Because the child is raised without care, he grows up to become a criminal. Because he’s a criminal, he goes ahead to murder an important doctor.
That important doctor would probably have saved 1000 lives.