Comment by vohk

Minecraft has limited, well-defined inputs and perfect feedback response. That's very different than operating a digger, let alone engaging in more complex real world tasks like trying to build and print and ship and assemble semiconductors to go skynet itself.

I don't mean to dismiss the risks or overlook the amount of damage that could be done just by lever-pulling - we sure have enough outdated infrastructure hooked up to the internet - but the jumps in complexity and necessary compute for most of these tasks are probably somewhat larger than the analogy implies.