Each person harbors a special decision making set of logic. This can be seen as a formula.

When you get two of these dynamic formulas interacting the fireworks begin.

The stronger dynamic will win. The more elegantly formed the stronger dynamic is the better they will win with more people as they will be able to overcome more decision making trees of the other person.

This my friend is charisma. The ability to overcome a large majority of peoples decision making trees.

Think matrix and Neo.