Obviously $1 trillion is a very important milestone. But this should not be our final target. If gold can have a market cap of $11 trillion, then I believe that Bitcoin deserves a market capitalization of much more than $1 trillion. Forget about gold. Even silver is currently having a market cap of $1.45 trillion, which is around 40% higher than that of Bitcoin. So our immediate target should be to overtake silver in terms of market cap.
Bitcoint could have much higher utility than gold too, every day use being one.
The ease of transfer gives it a huge advantage over gold so seeing bitcoin overtake gold in terms of MC wouldn't be overly surprising.