A lot of things impress me about bitcoin but what impress the most about bitcoin is the able of making someone rich over night without much stress or effort just by holding.
get rich or have income and make money it is the main reason, but I am more impressed bitcoin can teach things that not necessarily I can get before .. besides it can add insight and knowledge in this forum .. and still many we get in bitcoin as long as we want to learn and try .. i am very fortunate to be in bitcoin than it can change my life for the better and bitcoin taught me many things that make me a great person ..