I think Rick made the guitar playing mechanical on purpose, because he is trying [both sonically and visually] to demonstrate the high complexity of the chord progressions in that song, and the guitar is a good visual medium, perhaps easier to show than a keyboard. If he were actually performing it for an audience, it wouldn't sound like that. Here is a video of the original song.
You mean there's hope for humanity left? Wonder how that will work out after we've killed ourselves off? Pessimist me? Sure, but that doesn't change the truth. We will all be dead in the next fifty years. Sorry, it's too late to change it. We simply can't change fast enough.