Verbal vs. Mathematical Aptitude Across Academic Disciplines http://bit.ly/2yuTFTV via @razibkhanpic.twitter.com/Dd0DbefYW0
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
I wouldnt worry too much, people enter fields based on desire not aptitude (exceptions may be math and physics and hard sciences)
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.