How to play back all the changes you made in a Google Doc — mashable.com

If you use Google Docs in the Chrome browser, a cool new extension will allow you to play back all the changes that you've made in a document as if it's a movie. Writer and programmer James Somers reverse-engineered Google Docs and put together Draftback, which reveals a character-by-character history of documents. Here's how it looks when you play it back: Staring at a blank word-processing document can be a pretty intimidating starting point for a writer. By the time you've actually hammered out some words you're OK with, what you originally started typing is probably quite different from what's on the page. This allows you to experience your entire creative process all over again, hands-free.

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