4 ms·

It is not a real undo it is a warning with timeout.

• phillco 16y ago
  "LAUNCHING MISSILES (click here very quickly to undo)..."
  • d0mine 16y ago
    "cancel" and "undo" is not the same thing. You can cancel the launch. But you can't undo it. It is thermodynamically impossible.
    • phillco 16y ago
      Right. But that's how Gmail is marketing it. "Undo send" gives you the impression that Gmail is reaching through the tubes and yanking your message back for you, but in reality it's just cancelling a launch that didn't happen yet.
    • jpitz 16y ago
      Yes, but there's a compensating transaction you can apply to the missile up until the time it reaches the target.
• blahedo 16y ago
  You're right that it's not a "real" undo, but it is better than a warning with timeout; on a warning, it demands that you click (habitual action) after which there's no going back, but with this system it demands nothing, the message stays up, and you click (non-habitual action) only when you want to cancel.
  • d0mine 16y ago
    It is a warning where instead of the word "cancel" they use "undo".
    • blahedo 16y ago
      Except it's not the same: on a warning, you click OK and then A) the warning is gone and B) you can't get it back.