I'm interested in trying to track where my ideas come from.
Suppose I open files f1,f2,f3 and cut-and-paste lines from these files into f4.
I'd like to record this information in a log file (say f4.meta)
(at copied data from f1 to f4)
Is there a way to do program this?
Also if I copy and paste text from outside emacs (say a browser) is there some way to track and time stamp where the data came from?