We laugh far more often in social settings than when we are alone
It’s a vocalization, a sound, and it serves the purpose of active communication
When we laugh at our own actions, it’s a signal to our playmates that our intentions are ultimately playful
In other species, laughter occurs even in other species
The danger of laughter is the fact that we don’t all share the same norms to the same degree
What’s sacred to one person can be an object of mere play to another.