Some prehistoric people under-reacted to news of plagues. Other prehistoric people 'over-reacted' to news of plagues. The former went extinct. The latter became our ancestors.pic.twitter.com/NNbvK7UA6K
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
CL Fincher's papers (for the ubernerds) https://scholar.google.com/citations?hl=en&user=YoJmr1cAAAAJ&view_op=list_works&sortby=pubdate … ..
Some prehistoric people who didn’t panic developed much needed immune resistance. Their heirs are better adapted for it. There are no solutions, only trade offs.
Smoke alarm principle. 
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.