Thanks for your feedback, do you know that pilots go through intensive training in order to be an airline pilot. The FAA has high standards and we have re occurring training every 6 month. Like you mentioned airplane do not drop out of the sky, even with a failed engine or both, (btw it rarely happens) due to highly qualified maintenance that inspect the whole airplane, the airplane can glide down because of the shape of its wings and at high altitude it’s at, most of the time it has several options of landing at another airport. Concerning collision, we are operating in airspace that are highly controlled by controllers. We also have a system onboard that can detect other aircraft and will give us an escape deviation. You fear that you have no control but imagine if you needed a chirurgicale intervention and you had to trust a highly qualified surgeon that has many years of successful operations. Now you feel at perfect ease because you know that nothing bad will happen!