It's never easy to predict the future. But as PM's 110th anniversary celebration draws to a close, we've decided to try. Here are 110 ambitious ideas for the decades ahead. (For more about PopMech's brain trust and methodology, read Editor-in-Chief Jim Meigs' introduction. And if you want to try your hand at predicting the future, take our Facebook survey, and see when other readers think the most important events of the next 110 years will happen.) 2012—2022 · People will be fluent in every language. With DARPA and Google racing to perfect instant translation, it won't be long until your...