So help me get it clearly.
1) miners get bitcoins thanks to their capability to decrypt certain lines of code. 2) Miners sell them to "stock exchanges" or to "resellers" or to privates
Questions: 1)do Miners get bitcoins "for free" after they decrypt? and when they sell them do they get the entire amount? who creates the "packages" to be decripted? 2) Can anyone be a miner? 3) MtGox or bitestamp for example, are both miners and exchange, is that correct? 4) how exchanges fix the value of bitcoin? is there an algorithm or something that gives guidelines or general rules? 5) as far as I understand any exchange can basically fix the price indipendently...correct? 6) as far as I understand there is a limited amount of bitcoins and therefore exchange and resellers can go into a shortage of bitcoins, at least theoretically.