Good to see you back in G2K again!
Yes, there is so much to learn about land and lives that live on land. I have been learning (and developing a utopia) for many decades and I have to admit "I now know less than what I thought I knew when I started". I also come to realize thet there are millions solutions (or paths/methods/ways) to solve one problem. And that many times I would choose solutions that create more problems and need many more solutions and so on and so on (like the the law of kamma or interconnectedness of things).
But this is not about letting go of things. It is more about expanding our vision field to match the complexity of the world we live in. You found enjoyment in learning and sharing. I found enjoyment in learning and living. We are going the same way (in different parts of the world ;-)