When someone asked me about the difference between UI and UX, I could only give the example of a 'star-shaped mug'. This book introduced UXUI that changes users' minds and guides their thinking, and through participating in the challenge, I was able to add depth and breadth to my thoughts by exchanging opinions with various people. Now, after experiencing a service, I'll be able to express my impressions in more specific language beyond just "looks sophisticated" or "comfortable". In particular, among the concepts covered in week 2, 'biophilic design' impressed me the most. As technology advances, the world changes, and there are times when the reality of constantly having to learn something unfamiliar through platforms like Inflearn to adapt anew feels exhausting. At such times, I find myself longing for nature and visiting it to regain vitality. I'm both surprised and hopeful to discover that the work of creating a somehow familiar yet comfortable environment for users is already being applied in UXUI design, which is a concentration of knowledge-based technology. Now in my UXUI dictionary, the word 'natural' has been added alongside 'normal' as a meaning for being seamless haha In a world full of 'pull to refresh', one of my goals is to create a service that helps people Refresh. After participating in this challenge, it now becomes clear to me where to start. I plan to approach various services one by one with an open mind and try to discover the perspectives and theories I encountered through the challenge. I found it quite enjoyable to capture, as I did in this challenge, what intentions the creators are revealing and what meaning it conveys to users. Thank you to those who created the challenge and to my fellow participants!