Listeners, today we’re diving into the phrase piece of cake—a saying so familiar you’ve probably used it to describe something pleasantly easy. But why does eating a slice of cake mean a task is effortless? According to Grammar Monster, the phrase likely traces back to the 1870s American South, where enslaved Black people participated in cakewalks, dances that won the best performers an actual cake. Over time, winning a piece of cake from these relatively simple competitions became shorthand for any task that required little effort.

This idiom, still widely used in English-speaking countries, took on new life in the 1930s, popping up in Ogden Nash’s poetry and among Royal Air Force pilots, who dubbed straightforward missions as “a piece of cake.” The culinary connection makes sense—there’s something universally satisfying, and relatively easy, about helping yourself to a sweet treat.

Yet as simple as the phrase sounds, not every challenge feels like a piece of cake. Psychologists from Harvard University report that perception of difficulty plays a critical role in performance. When you anticipate a task will be easy, you approach it with confidence, which often leads to better outcomes. But if you classify a challenge as insurmountable, you’re likely to feel overwhelmed or avoidant—even if it’s genuinely manageable.

Recently, several ultra-endurance athletes have spoken in interviews about reframing impossible-seeming goals as series of small, doable steps. British swimmer Sarah Thomas, who conquered the English Channel four times in a row, emphasized the power of breaking daunting swims into tiny mental checkpoints—each ‘just another piece of cake’ in a very long, cold bakery.

When we see complicated tasks as individual slices, instead of whole cakes, we tap into a psychological phenomenon known as chunking. Cognitive scientists describe chunking as dividing large amounts of information or effort into bite-sized, manageable pieces, making even the biggest goals attainable.

So the next time you face a challenge, remember: few things are truly a piece of cake from the start. But by slicing your goal into smaller parts—and trusting in the power of positive perception—you just might find yourself saying, with a grin, “that was a piece of cake.”