When you measure something finite (#bitcoin) in something infinite (dollars), if demand remains the same or increases, then mathematically, the price must go up over time.

The question you have to ask yourself is whether you think demand for a digital, non-sovereign, decentralized, global, immutable, transparent, peer-to-peer, permission-less, inflation-resistant, pseudonymous, open-source, store of value with a hard cap of 21 million coins is something more people will want in the future.