Both
For me i prefer to choose both of them as my investment because gold is safe investment and bitcoin because the price is rapidly increasing .
I think gold or bitcoin it's all a good investment tool, you want to choose which one is good. just follow your heart. but if I myself choose bitcoin as an investment tool today. if my gold has never been.
I think to choose an investment you can not obey what your heart tells you, you must obey the facts and data, if you indulge in choosing which profitable investment will be the same as gambling, use your knowledge and your skills to analyze the advantages and disadvantages on both investments, so you can find data to determine which one investment is best