This quote from Steven D. Levitt's book '(Think Like a Freak)' encourages a practical and approachable mindset when tackling problems or exploring new ideas. The emphasis on having fun highlights the importance of enjoying the process, which can foster creativity and sustained motivation. Approaching situations with a sense of enjoyment can reduce the stress and apprehension that often accompany challenging tasks, enabling one to look at problems with fresh eyes and an open mind.

Thinking small is a surprisingly powerful strategy. While society often prizes ambitious big-picture goals, sometimes success comes from focusing on smaller, manageable aspects. This micro-level thinking allows for experimentation, learning, and iterative improvements that can lead to significant breakthroughs over time. It also minimizes overwhelm and fear of failure, making innovation more accessible.

Furthermore, not fearing the obvious encourages us to challenge ingrained assumptions and avoid overcomplicating issues. Often, the simplest solution or the most apparent answer holds the key, yet humans tend to overthink or overlook what is right in front of them. By embracing the obvious, we can save time and resources, and discover solutions that are both elegant and effective.

This philosophy opens a pathway toward more effective problem-solving and decision-making—less stress, more clarity, and increased likelihood of success. It reminds us that sometimes, the best approach is the most straightforward one, approached with a sense of curiosity and playfulness. Practicing this mindset can lead to more innovative solutions and a more fulfilling experience in various aspects of life.

In essence, Levitt's advice advocates for a balanced approach: enjoy the journey, focus on small manageable parts, and stay open to methods or solutions that seem simple or even obvious, yet powerful.