I sometimes have this conversation...but when i think more i come to the conclusion that i am a programmer not a scientist (i do not invent anything new :-)) ...come to think of it perl is open source ...think what would have been the scenario if larry wall or linus trovalds stuck on to their programs thinking it was their property ;-)) ...again this is my opinion just telling out what i think not saying that what is right and what is wrong ;-))))