Picture this... A post office outside drive up mail box. Try observing it. It won't take long and someone will drive up and they will have a difficult time mailing a letter. it will take them an inordinate amount of time to take said letter and reach out and place it in the slot. In fact, you will actually wonder if that person will even accomplish the task at all. And this can be seen at any post office in the country at just about any time. Yes, we have a veritable army of people out there who struggle to simply mail a letter. Proof, I believe, that alien invaders could conquer us in mere seconds.