So in a sense, are the deflation and inflation of BTC kind of like stocks?
Since it's effected by current events relating to BTC.
And also it's ran by supply and demand?
The price is linked to future price expectations and supply and demand
Bitcoin is an inflationary currency in the sense that the number of bitcoin is rising : 11m today to 21m in 2140 but the number of users and the wealth it represents is going up faster so the price should appreciate