I agree. but bitcoin can not increase its price forever. In the end, bitcoin have to become stable so that it can become a real currency. However, the chance that bitcoin becomes a legal currency is very small. As you can see, there is only 21 millions bitcoin existing and it will make less than 21 millions people have 1 bitcoin. In my opinion, bitcoin is gold 2.0 and 21 million coins are not suitable for a planet which has 7 billion people