I cannot believe how many things our brain is responsible for. The most amazing capability that I admire so much is our ability to learn and fluently speak languages. I went to London the other day and apart from English I of course heard million different languages. Listening to those various sounds made me stop for a few seconds and think what an unbelievable phenomena this is. For example, I am myself of a different origin to English and able to speak three languages. Polish and English I have been exposed to since I was a child, but German I have been learning for ages and can speak it. I know a lot of other people that are able to speak different languages, and I find it so fascinating that we can communicate through the use of various words and sentences.