The Mind As A Quantum Computer

So, I have read at least a couple science fiction books that focus on the existence of parallel universes in physics. Quite basically, this says that every time a choice is made at the quantum level, a universe exists where each choice possible occurs. Meaning that the universe is really a system of exponentially expanding branches from some vacuum fluctuation way back at the Big Bang. It is also suggested often in these works that the brain is somehow acting as a quantum computer because it processes certain things in a way that standard computers could not. Meaning, each time we make a decision, a universe exists where we made a different one. Tonight I am simply wondering what some of those universes look like.

In this vein, a friend once asked me if I could change any even in history, what would it be? Of course, there are many mistakes and regrets I could erase from my own past, but that seemed a rather selfish, small view. In the end, I chose to undo the burning of the library at Alexandria. Can you imagine what the world would be like with existing copies passed down through the millennia of all the old works of history, astronomy, mathematics, literature, philosophy, etc that were housed there? The loss of a place with such beauty in design and purpose makes me shudder with sadness. However, my only consolation is that perhaps the existence of the ideal in our minds is somehow more important than the actual version which would have inevitably disappointed in some way. According to records for the design, "The place of the cure for the soul," was engraved in the walls above the shelves. To imagine sitting there, smelling the mixture of papyrus and salty sea air, feeling the slight chill from the cold stone pillars, gazing at the scholars diligently studying and copying in rooms lit by the warm Mediterranean sunlight, resting your eyes with a glance to the gardens outside ... it makes you believe in the truth and beauty involved in the pure pursuit of knowledge.