These are some of the questions that haunt us as we try and live our daily lives.All around us at all times, there are theories and thoughts that we could choose to dwell on, or otherwise choose to ignore. After all, ignorance is bliss.Think you can handle the paranoia? The following list of scientific theories and philosophical questions will have you rethinking life and the way you live it.
Source: Twitter @UFOandAlien
Start the slideshow below and prepare to have your mind blow. Then SHARE these crazy theories!