Every designer has said it: "less is more." Strip the interface down. Do one thing extremely well. Let the primary action breathe.
It’s true, reducing cognitive load makes users’ decisions clearer and easier. Removing distractions increases completion of the action you want.
But hidden inside the simple result is an amount of work orders of magnitude larger than it appears. “Less is more" only works if the "less" you land on is the right less. Strip away the wrong things and you don't get behavior change, you just get something that looks like a successful interface, but isn’t. Elegance can be a mask for a lack of understanding (Claude Design, I’m looking at you).
The harder question, and the one that separates senior work from junior work, is not "how do we reduce this?" It's "what should the one essential thing be?"
That question doesn't have an easy answer.
Research which less is most important
Research tells you what users are actually trying to do. Not what the product team assumes. Not what the analytics dashboard suggests. What real people are trying to accomplish, in their own contexts, in their own words. Without this, your "less" is a guess.
Test your less
Testing tells you whether your interpretation of the research is right. The path from "users want X" to "the interface should look like Y" is longer than most designers admit, and if we’re being honest this is the first thing cut from the process. Being close to the finish line, with something that looks finished, proves just too tempting for many teams, senior leaders included.
Don’t lose your less
Discussion is where the design actually gets built. Engineers who streamline the scope. Product Managers with challenging metrics. Executives who saw a competitor do something different and want to know if it’s working. "Less is more" as a slogan doesn't survive these conversations. What survives is a specific case for why this is the essential thing, grounded in evidence and articulated in language the firm can act on.
Less is art
At the end of all this, there is still a moment where the designer has to choose. Multiple reductions might all be defensible on the evidence. What tips the balance is craft: a felt sense, built over years, of what will land and what won't. This is what research, testing and discussion produce in a person, over time, that lets them make the final call.
Defining less as more creates a false dichotomy between the two. Think of them as one: without more, there can never be less.
