Why can't crypto be tracked?
I heard that cryptocurrency is hard to track, but I don't understand why. Is it because of the way it's designed or some other reason? I want to know more about the reasons behind crypto's anonymity.
Why can't we drill to Earth's core?
I've always been curious about Earth's inner structure, specifically the core. I wonder why, with all our advanced technology, we still can't drill down to the core. Is it because of the extreme conditions there or are there other reasons that make it impossible?