Systems Thinking (ie. Social media marketing)

"The stone where it strikes the surface of the water, causes circles around it which spread out until they are lost; and in the same manner the air, struck by a voice or noise, also has a circular reaching quality." This quote is from Leonardo da Vinci no doubt during one of his many day-long scientific observations. I suspect he was onto something here. If only Facebook and a LIKE symbol was available to Leonardo - he wouldn't have had to cast all those stones and observe this social networking principle.