futurologist

noun

1. A person who practices futurology.

   “Although I do not pretend to be a futurologist, I would be embarrassed if my view of the trends and causes of social life in the United States had become invalid in such a short interval. (It is easy to be a success as a futurologist as long as your predictions are about what's going to happen fifty years ahead. No one can prove you wrong until fifty years go by. […])”