Someone told me demand and supply analysis does not apply to forex. This is because currency can be printed by central banks. Look at QE. There is no finite supply for a currency because money can be printed. So, demand and supply analysis for forex is pointless. So, what is the view of the more experienced forex players on this issue? Is it true that demand and supply analysis doesn't apply to forex? If yes, what are the implications when using technical analysis / chart analysis on forex?