>Gold is valuable because physical commodities and physical things, like jewelry, etc. tend to track inflation over time.

I don't know how to read this other than as stating the same thing with different words, i.e. "tracking inflation" is just another way of saying that its valuable.

Well, what I mean is, physical things tend to track inflation. That doesn't make them great investments. I'm not sure it's fair to assume the same properties for bitcoin, but supposing bitcoin is like gold - gold is actually not a great investment.