> bitcoin has no intrinsic value, just a exchange rate with other things
1. It has proof-of-work, which gives it value 2. Supply of the coin and demand for the coins determine the price.
The only thing that can vary widely is the demand, the supply cannot be fucked with (unlike fiat currency). It is impossible for whole bunch of new coins to suddenly appear out of thin air. There is no way to artificially inflate the supply.
"I burned a bunch of electricity and created a cryptographically provable magic token".
There is no value here beyond exchanges with the other bitcoin speculators around you. The value you describe is no different to the value of a pixel on the million dollar homepage.
There will be a point where the emperor is revealed to have no clothes and when you try to extract actual value from the bitcoins that you are holding (i.e. sell them), you will find there is nobody who wants to buy.
Although if you like, I'll trade for beanie babies. I've got rare ones, nobody else has these. They only made a few.
The value dictates the amount of PoW needed, not the other way round.