yes, I agree with you. Optimism is an attitude that a successful person must possess.
I am optimistic with bitcoin from the first I know bitcoin, I am sure that bitcoin will develop well, even I am sure that someday bitcoin will be equivalent to lamborghini price.
True, In order to be successful it is necessary to take risk and be positive enough to succeed each unkown steps. Nothing will be done by sitting in each of our safe zone, and it goes with every aspect in life and business including trading cryptocurrency. There will always be ups and downs like how bitcoin is in the market but it eventually always find to breakthrough each challenges.