Until now, quoting yourself on Twitter was a headache. You usually had to copy the link to your old post and paste it in to share that timeless comment or uncanny prediction. You won't have to do that after today, though: Twitter has made it easy to quote or retweet yourself in "just a few taps." It's a simple change, but this (along with an improved mention system) could help stimulate conversation by letting you quickly reflect upon a favorite remark.