who is sustaine the BITCOIN

Yes is my first post on steemit and i adore this community and BITCOIN community , evry people out there that it on media always ask : what BITCOIN is backed by what ? And the answer is so easy .. is backed by us who inveted in money in all form of it kind ... after that they ask what make the price so high ? well if it is last apple on planet of course cost so much demand price rise .. anyway this was my shy first post hope it helps and hold your BITCOIN as is grow cant go down and it will not go down BECAUSE real life -> dollar , euro whatever ... Internet -> bitcoin ... and future SURE BITCOIN