[quarantaseih]

TL/DR but I'm sure its all very interesting

However, I didn't state a statistical fact, or assert the effect of guns on the amount of criminality.

"Widespread gun ownership significantly lowers the EV of committing crime."

EV is expected value, not expectation. That is, I didn't say that crime is less likely. I said that a person who comes into a house in the US has a not insignificant chance of leaving on a stretcher, which I consider negative value from the invader's PoV.

[albertopv]

I'm not sure. Less than half US households have at least a gun, considering 120 arms every 100 people, there's quite a concentration. Also, commonsense tell me that, if armed, criminal comes in already branding the gun, to react quickly people inside should always have a gun with them, even when inside home. I don't know if US people is used to, I would find it a terrible way of living, a way of fear.