I am new here, and my question would be a follow up of this question, Survival without emotion, though not for the same purpose as mentioned in that question, however. Recently, I was pondering the same thing and came across this. Let me build up a nice story and a new world (which is a follow up of the existing one) to facilitate.
Suppose that everything is going as fine as it is now, same old Earth, same old people and everything as it is. But let us bring an evil guy into the plot. This guy hates humans and human emotion, but he is super-super-super intelligent and can do anything. And, he thinks that machines are far more superior than humans and that emotions are a hindrance to our kind. So he makes an evil plan or rather a machine to wipe out every ounce of emotion from this planet, and successfully does it as well. Now every kind of emotion, whether it be fear, anger, hormones (even them) are wiped out, so that there's nothing left but logic (similar to machines) in this new world.
Now, the difficulty I come across after this is that pure logic would have one big-big-big problem/glitch/bug/error/crash/whatever-you-may-call-it. Thinking from a purely logical view, we have no meaning of existence. The universe came out of randomness: the planets, the galaxies, everything. Hence, there's no preference to anything? That is to say, everything or every task will have equal meaninglessness. Logically nothing could be preferred over any other task, right? I mean, logic would require us to choose from one of two, one of many, or from yes or no. But since none would be preferred, it's an impossible task. I like to name fancy things, let's call this "equality catastrophe."
My question is: could this scenario ever be realized? Is such a world building possible? Or would this result in a kind of system crash in computer language, or maybe a contradiction in mathematical. Or maybe if that's why emotion are so important for our existence.