If you work in the tech industry, you might be familiar with the popular buzzword “usability.” Although designers and engineers use this term to evaluate how easy their tools or processes are to learn and use, the strategy for achieving usability can be an abstract mystery.

Here’s the most vivid way I can describe usability in action: in the movie Temple Grandin, the titular character crawls through a claustrophobic tunnel on a ranch where cows are prodded and dipped in pesticide to eradicate ticks. She experiences firsthand the ways in which the tunnel violates cows’ natural instincts, scaring them with glints of lights and unnatural direction changes. Later, Grandin redesigns a slaughterhouse to account for their natural sense of direction, and the cows are gently guided to their deaths. They get a dignified ending, and people can enjoy high-quality beef from relaxed cows.