What do you think of cryptocurrencies? I made a strawpoll, you can vote here: https://www.strawpoll.me/15130641. Personally I think they are the future. (Yes, I realize it's a bit skewed to ask people using a cryptocurrency site, but I'm going to ask and link to the poll elsewhere as well.)
Edit: you can view the results without voting if you want here: https://www.strawpoll.me/15130641/r