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.
Yes. To secure our future we must invest into some stable and more trusted options. Bitcoin would be the highly profitable type of investment than gold till all the bitcoin will be mined out. So, for the next to hundred years, bitcoin will dominate gold to attract new investors.
Yes, even both gold and bitcoin are limited resources, bitcoin has known limit. So, the chances for price appreciation would be higher with bitcoin than gold. So it would be wise decision to invest into bitcoin than gold as per current trend.