Twitter intros 'ScratchReel' GIFs that rewind, fast-forward

Twitter has introduced, and in a relatively quiet manner, 'ScratchReel' GIFs, which are animated GIFs with an unusual feature: you can scrub back and forth through them by swiping your finger (or mouse, for those on desktop). Signs of the GIFs cropped up in recent weeks, likely as part of a test on Twitter's part, but can now be enjoyed …