It depends on how you look at it, if you are talking about actual Bitcoins or the price of Bitcoin in paper money I think people confuse the two quite a lot, the number of Bitcoins is fixed, if anyone tries to change it or mess with it in any way then people are going to find out about it. As for the BTC/USD price, not only is the USD being inflated constantly driving up the prices of everything ( not just Bitcoins ) the supply of it is also not limited in any fashion. Regardless of this in the end no one person can dictate the value of anything which is why no matter what governments or central banks do people are going to be forced to pay more because it costs more to buy things if the volume increases and so on.
The kind of questions I think you're asking say to me that you're going to need to go do some research into economics, don't just look at the stuff that schools bring out, you need to look at all sorts of schools of thought like Austrian, Marxist. Keynesian and Hayek, these people all have different beliefs on how an economy should be run. What established western governments and central banks believe in is a form of neo-Keynesian and what happened to the Keynesian kind of movement is it got hijacked much like the conservative movement did in Americe. Regardless yeah, it looks like you need to go do some research because if I talk about it on here I'll spam the forum
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When I looked at all this stuff it blew my mind, especially when I consider how over-simplified and outright lying the school textbooks were when I learned about what happened to governments in the economic crisis and so on.