fxsurfer, you really, really need to study fundamental economics.

Let's make some essentials cristal clear.

IF the supply of bitcoin remains unchanged
IF the demand of bitcoin remains unchanged

then over time the "exchange value" to, say, the US dollar WILL indeed change, with a unit of BTC becoming worth "more" units of dollars. That's for the fundamental truth that the value of a unit of dollar, over time, decreases (rapidly).

Now, that the supply will not increase, but rather decrese, is a well established FACT, it will not change.
One uncertainty is wether the number of users and uses of bitcoin will increase, stagnate, or decline. That will, of course, impact its growth in value.

While we cannot predict how much Bitcoin will be Worth in a day, month, or decade's time, we can sat for certain that its scarcity will be a major factor in deciding its value. Obviously if there won't be any demand at all, it won't be Worth any money at all... but this is a somewhat obvious yet unlikely scenario. not really anything you can be insightful about.

So, you're either being completely lapalissian, claming that if there is no value for bitcoin it won't be Worth anything, or you're being--frankly--ignorant in claming that scarcity alone isn't a key value driver.