Someone just proved that yet another "smart" gun is crap:

https://www.wired.com/story/smart-gun-fire-magnets/

Look, let's go over this again:

When I need a gun, a half second to unlock it is three seconds too long.

I've watched a clerk take 15 tries to authenticate a fingerprint on a cash register, inside in dry conditions. Emergencies are less forgiving.

For liability reasons, the mfr wants this to fail into "lock" mode. For my safety, I want it to fail into "fire" mode. Because I know when I need a gun, the mfr does not.

If there is a lock on the very simple mechanism, it can be removed mechanically.

And this has zero effect on over a third of a billion weapons currently in existence.

The entire concept is crap, and if believe otherwise, you don't know enough about the subject. Do not argue. You're just wrong.

~~~

Here's an example with another piece of equipment: A fire alarm pull box.

You know, the kind where you yank a lever to activate a fire alarm.  This type had a small glass bar with a score mark to hold the lever in place.

At the training base I supported, some recruit managed to "Accidentally" pull the alarm. He was identified by the UV dye from the lever on his fingers.  It was an "accident," he insisted.

The pull station was replaced with another one with a striker you hit to break the glass, then you'd pull the lever.

A few weeks later, another recruit "accidentally" broke the glass. He didn't pull the box, so no one knows who it was.

You see where this is going.

By the time a few months had passed, every pull station in that barracks required you to:

Pull off a plastic cover that sounded an audible alarm at the box.

Open a wire mesh door that sounded a different tone and flashed a light.

Break the glass.

Pull the lever.

To actually send a call to the fire department.

To avoid "accidents."

Training and discipline avoid accidents.  Gadgets do not.

If you can't comprehend this, you have no business expressing an opinion in a technical field you're not trained in.