I have been playing a fun game where I see if a financial article on YC has bitcoin mentioned in the comments. It is in basically every comment section of anything related to finances. Personally I speculate in Bitcoins as a hedge against variations in cash and stocks. I like to think of it as e-gold that has some advantages and disadvantages versus a solid asset like gold. Due to the increasingly global and digital nature of our existence I think BTC has a very high potential upside.