Csikszentmihalyi indicates 8 components that make flow possible. One of them is having an achievable task. The person engaged in the task must believe they can accomplish it with effort. This doesn't mean the task isn't hard or challenging. In fact, it's quite the opposite. The task is difficult and requires significant effort. If the task is too simple, a person becomes bored and doesn't enter a flow state. If it's too difficult, they become frustrated and give up. The ideal middle ground is a task that seems achievable but demands considerable effort. For example, language-learning apps break down the complex task of learning a new language into smaller, achievable goals. Each level presents new vocabulary and grammar rules that challenge the user but are achievable with effort. As users progress, the difficulty gradually increases, ensuring that they remain in the flow state — engaged, challenged, and motivated.