I think gold and bitcoin are opposite assets, but both assets can be used as assets that complement each other in an investment portfolio.
Gold has better investment properties in some cases than bitcoin, but bitcoin also has its own advantages when it comes to investing.
I like that word, complement. But for me though, I don't think that gold isn't really a good investment because it's slow in terms of appreciating and at the same time pretty expensive just for anyone to consider investing, bitcoin is cosmically much better investment than gold.