Society

 The rise of civilization began with a certain transition.  The rise of society occurred when another ability arose from that.  If you're picturing society as the wealthy or elite clinking cups - pinky fingers extended - then you certainly have it backward.

What transition was so important?  When the mind gained the ability to supervise itself and balance awareness and focus.  Those no longer existed in the same moment instead shifting between the 2.

Our universe is based on 2s or 3s for reasons which may be obvious or inexplicable.  So it's only natural that a mind of 2 be drawn towards a mind of 3.

What works in 2s or even better in 3s?

Resonance.

It can be simply defined as a pair of oscillations which are mediated by a 3rd oscillation so the pair may resonate.

With that out of the way we can explain society.  The minds ability to make decisions or choices tests on something unexpected.

That would be empathy.

Without being able to take another point of view or see things from a different angle we can't make decisions and choices the best possible.

Having a mind of 2s grants that ability and goes all the way ba k to the garden of Eden.  Knowledge of good and evil is also of empathy.  When an individual puts themselves in someone else's shoes, sees how they are affected by actions or events, and doesn't take that into consideration - it is unquestionably evil.

When the opposite occurs it is either neutral or good.

Civilization began with 2 minds, good and evil followed.

Do we know where 3 might lead?