I believe that bitcoin is underestimated, I do not claim that it should only grow! But I'm sure that the future is for him! crypto currency in general, and bitcoin in particular - this is digital gold, many people still do not understand this. I'm sure that in ten years it will be so.
Bitcoin will be able to surpass gold when the market cap reaches $8 Trillion. For now, gold is still the leading stock with a market of $7.5 trillion and Bitcoin is still very far from that, as it is still hovering around $100 billion+. I dont know if Bitcoin will ever surpass the market cap of gold, but if it will, then its probably going to take a very long time.