Regarding the quantum physics section and infinite universes...
"I vaguely recall calculus,” I said. Ed McGuire nodded in agreement.
"Oy,” Alan said. “Fine. I’m going to use small words here. Please don’t be offended."
I actually need smaller words than your chosen words, Scalzi. Maybe an illustration would help. A picture book. A nursery ryhme? You know what? Let's just call it magic and leave it at that!
I definitely don't have the math.