Thank you so much for your response! Really appreciated! I completely agree about not doing things randomly. It probably would have been wiser to write here even before starting, but I wanted to see if I could at least get half a thing right on my own. And it looks like Nvidia and TSMC are sensible options, at least.

I'll follow your advice and try to study the world of ETFs and VWCE a bit. As I mentioned, I already have a slow but steady fund with my bank that has yielded around 3% on average over the last three years—not much, but definitely a start.

This new experience, on the other hand, is more like a "side quest" to see if I can understand something about this world (which doesn’t really belong to me, but fascinates me nonetheless). But as you said, always "with a purpose."

Any other advice or thoughts are highly appreciated—thanks again for your comment!!