[snozolli]

100% of us could sustain a life changing head injury that renders us more violent and aggressive than we were before, and that could happen at any moment

Then I should be imprisoned if I present a threat to the public. I don't understand what your point is.

[maxbond]

If you think that there is a distinct group of people who commit all the crimes (as was suggested), and we can solve the problem of crime by locking all of them up, than you are mistaken. Or rather, that group is "everyone."

It's an easy trap to fall into for two reasons. It would appear that you and those you know aren't capable of being criminals. This is more comforting than it is true. Everyone, including good people, has the potential to do something horrible; the problem of evil isn't that it's present in a certain group who we can imprison, the problem is that it's present in us all.

The second thing which makes "lock them all up" a seductive proposal is that it's cynical. Cynicism can feel like the opposite of naivete, so it can feel like you're being clear eyed and realistic about the situation and that the people you disagree with (say, prison abolitionists) are naive bleeding hearts. But cynicism is actually just another form of naivete. It's making the same error - blinking while staring into the abyss - with different aesthetics.

[dimensi0nal]

> Everyone has the potential to do something horrible; the problem of evil isn't that it's present in a certain group who we can imprison, the problem is that it's present in us all.

But some people are actually more predisposed towards criminality than others. We aren't blank slates.

[PaulDavisThe1st]

The extent to which criminality (or any particular human behavior) is driven by circumstance or "nature" is (and for millenia has been) a matter for considerable debate.

It's clear that both contribute, which is important because that means there are neither "ur-criminals" nor "not-criminals". While some may, by their nature, be more likely to commit a certain type of crime, none are free from the possibility of doing so under some circumstances.

[FireBeyond]

> Then I should be imprisoned if I present a threat to the public.

The problem with this is that's it is extremely easy for people to define "threat" in ways that are convenient to them or that support their prejudices, a la Reefer Madness.