The best way to help bitcoin go mainstream is not to calculat the popularity. If the result is bad no one will invest in bitcoin anymorr. If the result is good big investors will not invest due to the already big market.
Don't agree. The investments in bitcoin have nothing to do with popularity. Firstly bitcoin has began from zero without any investment but only with the work of Satoshi Nakamoto and his friends (known and unknown) which developed it in view of its potential. Second is his potential which make him popular in our days and it will be its potential which will make to many others to invest and interesting on it.
Bitcoin as a currency is nothing compare to its technology which will disrupt several technologies in to many was of our everyday life.