#science #productdevelopment The way we perceive the things around us define how we interact with them. My coffee has a temperature, a color, and a cup it sits in. These things define my coffee through my eyes because these are the attributes of my coffee that are relevant to me. I'm ignoring a ton of details: how many atoms are in the cup, the what chemicals combine to make the flavor, how the coffee beans were processed, ... the list goes on and on. I ignore these things because they simply aren't relevant to me. An interface is a definition of what is relevant. When we start paying attention to the different interfaces that people use to perceive their world, the ways in which people act start making a whole lot more sense. Interfaces are a way to understand perspectives, and a way to define what is relevant. When we start to understand the different ways people perceive things, we can start to define an interface for them that makes sense. The payoff of creating a good interface is obvious -- think about your favorite product; it almost certainly has an excellent interface. When we define the right interface for our audience, the things we give them resonate with them, and the result is resoundingly successful. This applies to every way we communicate with other people, whether it's delivering vaccines to an under-served population, teaching calculus to high school students, writing software for other people to use, or writing a blog post. When we correctly identify our target audience, and correctly identify the most relevant interface to communicate with them, the things we do and say are 10x as impactful. There is an art and skill to identifying the most relevant interfaces through which to communicate, and that can be practiced and learned. ##### Related Notes [[Delivery Systems|Delivery Systems]]