system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come when someone tries to open a car door at the same time that someone unlocks the door, it won't open/unlock?
gpt
Does not happen in modern cars.

There's a latchkey in older cars that, if you tension the door lock wire at the wrong time, will cause it to go flaccid - which will result in the door lock not opening. So you press the lock button, it tenses an actual wire, and if the door handle is opened at that exact moment it can't pull any tenser, so it does not unlock.

Modern cars have circuitry to prevent that situation.