Do things happen for a reason?

[Brian37]

Why do you think things (bad or good) happen?

This is an oversimplification and mainly laypersons question made by the religious.

The complicated answer both happen because both are observable. 

Ultimately the the universe is made up of constructive and destructive events. And even humans have always done good and bad.

But if one is talking in terms of science, a hurricane is a perfect example of being both predictive and uncertainty.  Science can tell you the average conditions that have the potential to lead to a hurricane, but what they cannot tell you is the exact number of raindrops produced by the hurricane during the duration of the storm. 

But with human behavior, we do have sciencies like psychology, psychiatry, neurology, and sociology.  Science has an idea on conditions of say, how a kid is raised, if they are abused vs not abused, we have a likelihood idea of how a child might turn out as an adult under certain conditions. But, just like the hurricane, you cant predict to 100% certainty if one arises what category it will be or whom it will affect. Some storms peter out long before they hit a wide population. 

The simplistic answer as to why good and bad happen, is because they do.  The complicated answer is what science tries to figure out. 

The problem with humans is that far to often we view life in simplistic terms. Science talks in terms of sample rates, peer review, probability. 

Can science predict 100% of what 7 billion humans will do, good or bad, ? NO. But it can tell us a variety of reasons humans do good or bad under specific conditions.