“Try quickly typing 1+2+3. I bet you won’t get 6.”

Earlier this month, I talked about a rotation button in photos that behaved really nicely in iOS, and not so great on the Nothing Phone. Here’s a story of a similar fumble iOS once made that might bring the point home even more. The calculator app has been preinstalled on iPhones ever since their debut in 2007. For the longest time it hasn’t been anything more than a standard four-function calculator with a decades-old feature set. If you’re not careful, however, you can mess up even that. Ten years into iPhone’s history, iOS 11 introduced a problem just like the Nothing Phone rotation – quickly tapping on keys would show them as responding, but the actual action wouldn’t be registered. Michael Tsai’s aggregator’s first entry has a video from Stephen Heaps: It shows typing 1+2+3+4 where iOS forgets one press of +, resulting in 1+23+4 = 28. Many more people posted about it afterwards, and showed various other examples. It is oddly enthralling to see a computer fail at basic math. But…