Ehmm. For this thought to make sense, all your windows would have to be text only, one line that you always want to read and doesn't wrap, with no other way to

Ehmm. For this thought to make sense, all your windows would have to be text only, one line that you always want to read and doesn't wrap, with no other way to dismiss except the close button, and with your cursor always following along with your eyes. By your logic, actually, the close button would be best placed in the lower right for any window with several lines of text.