The wheel, the telegram and now, Google's "Undo Send" email feature. There's nothing like an invention that truly changes the fabric of life. Even better are those that save us: hydraulic braking, say, or rehab.
This is the news that the tech giant is rolling out a feature allowing users to pull back emails – up to 30 seconds after hitting send. The feature has been around for a while, but hidden in Google's labs section.