Plainly it isn't an exact science, despite it being a complex interaction of micro-decisions and corresponding thought; perhaps it doesn't always work and we pass by some potential soulmates like the proverbial ships in the night, never quite connecting. Then again, perhaps the system is tenacious and continues to run like a computer program on infinite loop, so that if at first you don't meet, you are drawn back together for another try.
The revolution of video had a massive affect. We grew up in a time where suddenly you could own films. Before, they had a theatrical run, and then perhaps they'd come back, or you'd catch them in a retro cinema.
A biological agent, I’ll buy. Some sort of super-virus? Sure, why not. But death? Death is a disability, not a superpower. It’s hard to run with a cold, let alone the most debilitating malady of them all.