As usual, the Steam Hardware Survey can give you a rough estimate, too.pic.twitter.com/tKQ2wVGtww
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
... there are actually many modern machines that were still running 32-bit windows :(
This was never true of Mac - all modern Macs always ran 64-bit.
So it's not always as cut-and-dry as it should be on the PC :(
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.