And just about a year before that on Black Mirror.

https://www.imdb.com/title/tt5709236/

No need to panic. Just because the video has high production values doesn't mean it's an accurate prediction of the future, or that effective countermeasures won't be found.

I’m gonna have to say I disagree. We are already making tiny drones the size of bees. And you don’t need that size to make a reliable, one shot bomb to kill someone.

Anyone with time, a bit of money, and a plan can make a swarm of drones to fly into a crowd automatically and blow themselves up remotely.

The fact that I hasn’t happened already just surprises me.

I imagine Bill Gates' mosquito killing laser research is going to become a lot more popular soon.

They could've done that years ago with more conventional remote vehicles and larger bombs.

The real fact is that there aren't that many evil genius terrorists plotting a way to kill a crowd of people.

To me, the worry about killbots is state actors, not terrorists. Countries aren't usually about indiscriminate murder, they're usually trying to scythe away one group... Picking people out of a crowd and murdering them with facial recognition drones is a more realistic fear, imho.

We've never really found an effective countermeasure to bullets apart from avoiding people who want to shoot us.

If someone develops what is essentially a bullet with 365-degree acceleration, I doubt there is going to be a better strategy than hoping that one is never fired at us.

Modern US military body armor is actually quite an effective countermeasure against most bullets. Check the casualty statistics from recent conflicts.

Oh, yay, always looked forward to having everyone walk around in military grade body armor.

The point is that — contrary to what @roenxi asserted — effective countermeasures do exist for those who really need them. But the vast majority of us are at near zero risk of being shot today or attacked by drones in the future. No one cares enough about us to kill us. Let's not be paranoid.