Dive summary:

• Twitter started rolling out the capability to download every tweet for an account.
• Downloading an account’s entire history of tweets can provide insight into change in perspective over time.
• A complete catalog of tweets makes it accessible to find tweets from important events for curiosity or posterity.

From the article:

… The first thing you should do once you get the ability to download your archived tweets is to do so immediately. It won’t take up too much space on your hard drive. If you really care about the time you’ve spent on Twitter, why not back the massive file up on a service like Google Drive, Dropbox or Box? It certainly can’t hurt. …