Electrons normally encounter resistance as they move along wires, the pathways that we create for them.  Traveling over a transmission line, there is some loss of power and some heat is generated as the electrons bounce along the path, hopping from one atom to another.  While wires may look straight to us, for the electrons the path is only a bit better than random.  There is resistance in navigating the chaotic pathway.

If the conductive material is made really, really cold, the electricity can pass with almost no resistance at all.  The atoms slow down and stop dancing.  The electrons pass straight through.

In law we can perceive a similar phenomenon.  When a legal pathway is well-established, it becomes smooth.  Events pass through the pathway without ambiguity and they can be made to pass through with little delay or cost.  (Cost and delay can be imposed, as gating rather than friction.)

For example, the transmission of a fractional interest in a business enterprise is very complex conceptually.  If done freehand, the transmission may be documented with hundreds of pages of legal text and description.  In contrast, a sale of a block of shares on a stock exchange has  theoretically equally complicated effects, but the path is clear, execution is rapid and cheap.  The difference between these two situations can be understood in a number of ways; one way is that the second involves a smooth pipe, a well-cooled wire, that connects buyer and seller.

Legal pathways of fixed materials – text building blocks with words that stay still – can become increasingly friction-less pathways by which people wire up their relationships.  The friction will drop – the words will cool – as they are re-used, become known, evolve into standards.