there's a fixed supply of coins
there's a variable but fairly stable trend on demand for coins
and there's speculation as to the future demand for coins
Ok Mr Adam Varoufakis.
I'll accept your theory into the coinomics hall of fame and candidature for potential decentralised monetary policy even though I don't agree with it and we'll just see if it works out.
I suppose there's enough voodoo logic in the current system to make anything look good so you never know.
In the meantime at least it looks like it might be worth the price, whether its stable or not

my theory will be put the to test before bitcoin actually becomes currency used world wide
in <2 years the market will have more or less saturated as an alternative to gold + a remittance tool, once speculators feel the market is fully saturated and the pump and dump is over and we appear to have found a "fair price" ( 32,000$ / bitcoin )
Then speculators will begin to do as i described, they will expect bitcoin to grow at roughly 5% a year and you will see that price of 1 BTC will become VERY stable while its actual demand varies significantly month to month.
after a few years of this very stable price, we will know we are ready to for the decentralization of world domination and one last mega bubble targeting 5 million / coins will materialize.