"Well, I grew up in Stable 3," answered Silvermind. "a while out west from here. We stayed in the Stable some 20 years after it was supposed to open, simply because we were afraid of the dangers outside. Unfortunately, our water chip broke, so we were forced to open the door and start trading. All was going well, until..." Silvermind trailed off and started staring into space. Whatever had happened clearly didn't resonate too well with him.
"Anyway," he continued, after a few seconds. "I've been traveling the Wasteland since we opened that Stable. Not sure exactly why, but I figure if I can help out some ponies on the way, well that'll be just fine by me. I studied old-world science in the Stable, so I have some basic knowledge of medicine and such. Still, it's pretty rudimentary, and I'd greatly appreciate whatever you can tell me."