Human limitations shape how we process information, and designers must consider these constraints. The article starts with a simple memory test, highlighting that most people struggle to recall a list of items, demonstrating the limits of short-term memory. Citing George A. Miller's work from 1956, it emphasizes that our capacity to remember is around seven items, with a maximum of twelve. This insight informs minimal design, which aims to simplify experiences by reducing cognitive load. The text explores how our brains operate on autopilot, often making decisions before we are consciously aware of them. A study by neuroscientist John Dylan Haynes revealed that brain activity predicting decisions occurred up to seven seconds before individuals were consciously aware of their choices. This indicates that much of our cognitive processing happens outside our conscious control, suggesting designers can guide subconscious processes to enhance user experience. Key psychological principles, particularly from Gestalt theory, further inform design strategies. Gestalt psychologists found that people naturally perceive simple, stable shapes. This insight aligns with Miller’s findings on memory limits and the importance of minimizing design elements. Experiments on inattentional blindness show that when faced with too many stimuli, people miss significant details. These studies underscore the need for designs that are straightforward and easy to navigate, catering to our innate cognitive tendencies.