Actually,bitcoin and gold are the same. They are both an asset and assets are where our income grows. They are different in a way that bitcoin is for internet use while gold is for global use. Bitcoins are as of now have larger value than gold but they are both being hold because holding a paper money or fiat money is not smart financially because paper wallet decreases its value as time pass by while gold and bitcoins or altcoins grow. So if choosing on both, either way your income would grow, we cannot tell which is faster but it is assured.
Your knowledge about Gold and Bitcoin are wrong!
You do not understand Gold, Gold is a real asset and Bitcoin is a crypto asset use digital technology, but different other digital assets, Bitcoin used blockchain technology for its system.
Both are can using for global transaction but you said only Gold can does that

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