I can’t believe this is still a thing in 2018. One space after a period folks.pic.twitter.com/INGwW8gEbR
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
The purpose of 2 spaces is still valid. 1) You can spot breaks easier 2) To distinguish between an abbreviation: "word-dot-space-word", and sentence end: "word-dot-space-space-word". Informally, one space is fine.
And Macbook keyboards #DisturbingGapGenerators
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.