Mer: Don’t you wish you could take it back. That thing you said, that thing you did. There’s no undo button. There’s only hoping we can learn. We can change. Right? We can do better. We can’t take back what we’ve done. We can’t undo the past. ‘Cause the future keeps coming at us.
The past is written, there’s no changing it. What’s done is done. But the future is ours to choose, for better or worse.
– Grey’s Anatomy, Season 13, Ep 1 ~ Undo