1. It's trying to tell us not to be limited to a certain area. Even though the space was really small, he managed to be creative and innovate it to be better.
2. In the video, the owner was inspired by the boats in the lake near his house when he was younger. The folding technique he uses in his cupboards are also found in the smaller boats.
3. I think that's true because simple means easier for us to understand and more efficient for us to use.