Well, it wasn't really this story that updated my beliefs. It was my beliefs that made me appreciate this story. I tend to interpret stories using my own understanding of reality, so oftentimes it's simply just rationalization of what was presented (e.g., read what New Age people say about "quantum physics" and try to see if it fits at all with QFT, or at least how one could come to such mistaken beliefs). Demonstrating a hypothesis through a story helps in communicating the idea, that's for sure.
I was recently explaining the concepts behind this story to a friend of mine, and like I've read before on here, sometimes you don't really understand what you know until you think it all over again. As such, I found it amazing how great this story demonstrates how incredibly unsafe an arbitrary superintelligence is to humanity. When I first read this, I thought about the implications behind how "living in the Matrix" didn't really mean a whole lot when you could essentially hack your way "out" into the rest of the universe. It helped explain how any part of the universe we have yet to discover is by necessity a part of the universe as well.
After discussing the future of AI with said friend, he would ask things like "what if the AI was simply confined inside a computer?" I explained how that wouldn't work because said AI would find a way to send a message to someone who would unwittingly allow the AI to create itself some physical existence outside the computer and still take over. It truly is amazing how deep this story is when you understand a lot of what's in the rest of the core sequences.
Electrical engineering occasionally relies on quantum mechanical properties of semiconductors and other materials in their products. Then again, EE is one of the hardest engineering disciplines (or so I hear).