Zarrella's Hierarchy of Contagiousness: The Science, Design, and Engineering of Contagious Ideas

OODA is an initialism in which the letters stand for the four stages in the combat decision-making process: Observe, Orient, Decide, Act. In every situation, an individual first observes his surroundings and gathers information, then orients this data with his previous experiences. He then decides the best path of action, and finally, he acts.

the AIDA concept. It represents the steps in a purchasing decision: Attention, Interest, Desire, and Action. The attention of the customer must be attracted, interest must be raised, desire must be established, and finally, the act of purchasing must be completed.

An informational cascade occurs when it is optimal for an individual, having observed the actions of those ahead of him, to follow the behavior of the preceding individual without regard to his own information.

By blending these two seemingly discrete interests, I had created what I call “combined relevance.” When someone who was into both of those things, or knew someone who was, saw my absinthe spoon gadget, he knew it was right up his alley and he had to have one. And he had to tell all of his likeminded friends about it.

Evolution is how contagious ideas are created in the wild. Where there are lots of different ideas, and there is competition for mind space, only the most effective ideas will win. Social media platforms are the most powerful memetic petri dishes in history, nurturing the growth and spread of virulent ideas, because of the plethora of ideas, the si

Some of the most contagious brands serve as boxes of crayons, not rubber stamps. Brands that provide their users with a vocabulary and tools that allow them to play with and remix their own ideas succeed because these brands step back and let evolution do what it does best.

What they’re interested in is the author’s unique point of view, the perspective that only that specific person could have. Talk as yourself, not about yourself.

If your ideas reinforce my reputation, I’ll share them.

When I started working alongside a professional sales team, I was exposed to the AIDA concept. It represents the steps in a purchasing decision: Attention, Interest, Desire, and Action. The attention of the customer must be attracted, interest must be raised, desire must be established, and finally, the act of purchasing must be completed.

At each step, you can change the numbers in your favor: Increase the number of people exposed to your content. Get more email-list subscribers or Twitter followers. Create attention-grabbing content. Do lots of testing on your subject lines to increase open rates. Include powerful calls to action.