My honest attitude toward immutability. (I mention its value in multithreaded programs earlier.)pic.twitter.com/DfAffTht0G
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
My take: avoid state wherever possible, and strictly control mutators where it isn't. F* with its effect types is nice for that.