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.
Bitcoin and Gold are both very profitable in trading.. Even gold is more profitable than bitcoin.. but the problem with gold is we need so much money to start trading with gold. and bitcoin don't need lots of money to start work. with bitcoin we can easily start trading bitcoin to altcoin only for 5 to 10$ dollar minimum. this is the beauty of bitcoin and this make bitcoin more useful for traders like me.
Many of us can't afford gold even though it is better than bitcoin but both of them have its own disadvantages and advantages.
But since we are in the digital era maybe bitcoin would be helpful if a person can't afford to have capital for gold.