I did not read all the posts but let me tell you what happened to me and the auto pilot (computer).

We were climbing out of 20,000 feet on auto pilot for 30,000 feet. All the sudden, with no bells, dings or oral indications, the auto pilot "capt"ured the "alt"titude and began a pitch up. Going through 5 degrees and approaching 10, we took control away from the COMPUTER to keep it from stalling.

If we were not there, people could have died.

We may see an unmanned aircraft, but there will always be someone there to supervise.

Thank you and always watch your auto pilot.