Seriously? Run a Open WebUI and get money?
I can share a more personal story: after spending a year studying abroad in Britain, I almost forgot how to write Chinese characters—even my own name—since I hadn't written any for over a year! However, when I returned to Taiwan, I was able to recall most of them within minutes. I consider this a temporary phenomenon that fades quickly with focus and a bit of practice.
[0] https://d2l.ai/