The one common ellement in all airplane crashes; human error.

You cannot get away from it. Humans design the airplanes, humans build the airplanes, humans design the software, and humans install the systems, and then humans try to operate it.

Boeing is not perfect, look at the 3 years of delays on their new 787's, and they still don't have all the bugs worked out.

So...how do you overcome human error?

You train for it. ie. you have the attitude that everything you know could be wrong, so don't trust anything, or anyone, ever. The most dangerous guys I fly with are the few who think they know everything, about everything.

Nobody knows everything.

You know how you tell a new guy on the 777 from an experienced guy?

The new guys say, "What's it doing now?"

but the experienced guys say,

"Oh, it's doing that again."

Flying is still safer than driving to the airport, the worst part of my day is driving home through Orlando traffic at rush hour.