I don't understand why the poll even exists here, I'd say most people on this forum think the same, else they wouldn't be here.
Well, believe in bitcoin but I don't think it will be "world's future money system". At first I think the world not going to have a unified monetary system in the next few centuries. If it will happen at some point in the future, money will be still issued and controlled by the government or some corporations. Bitcoin (or it's successor) will remain an open alternative to whatever money will be used by that time or just a collectors item

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Don't underestimate the power of technology in this day and age. Innovative technology and the internet will make sure that if something is as good as it says, people will learn about it really quick.
Compare it to the internet adoption, took 20-30 years til we started using it properly, now with the help of the internet the same could be done with bitcoins, just so much faster. The only distractions at the moment are laws and the government. But that will clear itself out soon anyway.