What fascinates you most about human behavior?

There are 3 major things that fascinate me about humans;

one: the fact that war never ends, we simply cannot seem to be able to escape it. someone is always at war with someone else, and I don't see this changing any time soon.

two: insecurities, we all have them, but we all react to them differently and some people, most people go overboard because of them.

Three: the belief in God and how some people still don't believe. my main reason for believing in god is how everything seems to have worked out perfectly for us, the earth is at just the right distance from the sun so that its inhabitable. its got all the elements we need to sustain life. we even have a moon that allows us to survive, for if we had no moon, no creature taller than 10 cm could survive on this planet. we're not close enough for any star to explode and kill us. so with all this perfection, how is it that some still think its just coincidence that we're here? I think its all set up by a higher power.

what about you?
What fascinates you most about human behavior?
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