They are from two different worlds. And they can be compared - but to no avail, in fact.
They will simply coexist just like they do now, even if one would bring more than the other.
Bitcoin investment, real estate Gol and silver are both good forms of investment; they are not going to replace each other. Bitcoin did not come to replace any in the first place but to serve as an alternative in whatever purpose anyone wants to use it for. The market cap and how other pictures it will vary, but that none of them will completely push the other into dust and render it valueless
Although they are all investments, they are clearly completely different assets and have different use cases so they cannot be substituted for each other. The emergence of bitcoin has never made gold less attractive or the demand for real estate less, and vice versa. But it's funny how many people like to compare bitcoin with other assets and just want to prove that bitcoin will be the best. But what they don't know is that even if that happens and bitcoin becomes the biggest investment, it will never be able to replace the role of gold and real estate.
But honestly, I doubt bitcoin will be able to surpass these two assets in terms of capitalization because their demand is very different. Real estate is too important if not the most important asset in the world while gold is not only used for jewelry, investment but also used in almost every industry and is extremely necessary. The difference in demand for these three assets is too great.