I was driving a long roadtrip from Texas to California, split into a couple segments over several days. At one point, my adrenaline and heart rate suddenly spiked. I felt freaked out but could not see a reason for it. I checked all my mirrors, traffic was busy but seemed to be moving along normally. A few moments later my vehicle was rocked by a semi-truck blowing past, traveling much faster than surrounding traffic, and missing my vehicle by what seemed like an inch.

The roadway was curved slightly, so I think the semi was in a blind spot when I was actively searching for the problem.

It's interesting that a subconscious process could alert me to a problem, in this case it didn't help me resolve it, but at least I was alert and looking. It had never happened before so there was a bit of confusion as well (why am I suddenly freaking out?) - but now I know how to pay attention if that feeling happens again.

Sure maybe it happens and there is nothing really going on but my point is there is something about our sub-conscious that cannot be implemented with computers.