" - that is really worrying. Why would they do that?"

"Mental instability, aforementioned. Or sometimes political motivations."

 - I think that maybe you should stop them and get them help and make it hard for them to have access to weapons.

"Yes, we as a society have this as a goal."

I am confused about why it's hard. Are there, what, dozens of them?

"Yes. And they are not always identifiable before the part where they try to shoot somebody."

That seems like an argument for going public.

"...why?"

Well, if you have dozens of people who will at some point kill a random person, and no way to tell who they are until they kill a person, then it seems much better if they kill us. Since we have souls.

"No."

...why not?

"There's not a fixed number of future murder victims."

...are there a fixed number of unstable people who cannot be identified until they kill someone?

"Not really. People just have a variety of thresholds of - stress and opportunity and so on - at which they'd kill someone."

I do not think Elves have that.

"That sounds nice."

Your way sounds kind of terrifying!

"We didn't exactly pick it from a list."

It's a good thing your creator doesn't mind people saying he did a terrible job.

"Still don't think we have one of those."

It just seems hard to imagine this happened at completely random by accident.

"Why?"

Accidents usually look a lot less - orderly and purposeful? And less inclined to use categories that we think of as categories, like 'twins' or 'sixteen'?

"I don't think you need a creator for numbers. We have a biological explanation for twins, occasionally somebody double-ovulates and both get fertilized and bam, twins. Fraternal twins like us, I mean, identical ones like you it's one embryo and it gets jostled or something and splits up really early on."

I meant the magic, not the things themselves, the things themselves are surprising but swamped by there being anything at all, and habitable worlds in particular, and people living in them in even more particular.