Gold and Bitcoin both have promising future and trading them could be profitable in long term run. Personally i trade Bitcoin but trading gold is profitable too in my opinion.
Trading gold is profitable indeed but never as profitable as bitcoin can be though so in a sense of which one if better for profit I'd pick bitcoin.
But there's ton of other stuff that gold excels at better than bitcoin does so..
True trading gold is really profitable but not profitable as bitcoin because in bitcoin you can earn ddaily here not like in gold after you sell it then you are nothing to do with it but if you are going to invest your bitcoin you can really make profit there and you can make such money in bitcoin.