Extinguishing ladybugs illusionpic.twitter.com/xt5ThFy0zS
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
See ladybugs on one circle. Then, those on the other may disappear.
Ok but isn't that just lack of resolution outside of fovea? Does it still count as an illusion if I can see through it?
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.