I'm beginning to realize that all my trading failures are due to emotions Greed! is my biggest one falling in love with a trade.. Computers don't have these problems so how can man ever win against a computer with no feelings or emotions? You can't! A computer program that just knows when to sell or buy and has no emotions or feelings and never gets tired or has a bad day! we human traders are kidding our self's we are living in a dream world against technology..