If you had to convert all your wealth to either Bitcoin or gold and keep it there for 10 years, which would you choose? Keep in mind the fact that Bitcoin has only been around for 5 years, and could be fundamentally different in any number of ways in 10 years.
I think that you should invest in both as both of them will strengthen different aspects of your portfolio. Bitcoin, being one the fastest growing investments in the world will increase the rate of growth of toe portfolio and gold, being the most popular investment in the world will make your investment more stable in the long run. This diversification can help you eanr higher profits in less time.