Hello, Baguette. Thank you for taking the course and giving me good opinions. First, I will talk about the Bollinger Band trading technique. The Bollinger Band technique is inherently not traded frequently. It is not common for the asset price to fall below the band, and in the code, it is purchased when the current price falls below the band at a timing when the 120-minute weighted moving average is greater than the 240-minute weighted moving average. This happens even less often. The core of the Bollinger Band trading technique is to purchase at an accurate timing rather than frequent trading. However, if you lower the stop loss and take profit ratio a little, you may be able to reduce the trading time a little. Next, you gave me an opinion about the UI, and I also thought about this when I first created the course. Although it is convenient to have a UI, it takes a lot of time and effort for those who are not familiar with Python UI to learn it. So I thought about focusing on the algorithm rather than the UI. I am thinking of adding full-scale UI development in the next course. Providing a UI means that you have to provide many functions that users can conveniently use, such as data collection, backtesting, various algorithm option management, and coin selection through the UI. Therefore, I think you should create a lecture for intermediate and advanced users, not beginners. Thank you again for your good opinion, Baguette. I will always try to develop the lecture into one that is helpful to students.