That seemed random, and it kinda was: uneducated(!) guess on how long it will take the technology to both develop and popularize to the point the average kindergarten massacre* is committed with a 3D printed gun.
Is 30 years long enough for there to be a decent likelihood we’ll be able to print the switch and firearm from that video? Thanks for your responses, I can tell you know your stuff.
* to be clear, being forever upset about Sandy Hook has no bearing on my respect for responsible gun owners, presumably the vast majority