“SIGMA is a group of science fiction writers who offer futurism consulting to the United States government” http://www.sigmaforum.org/
Fascinating to look through the membership, eg: http://www.sigmaforum.org/?page_id=117
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
“SIGMA is a group of science fiction writers who offer futurism consulting to the United States government” http://www.sigmaforum.org/
Fascinating to look through the membership, eg: http://www.sigmaforum.org/?page_id=117
