I'll wax all I want grandpa....it's part of the learning process for me. I haven't flung muck at you for your condescending manner so save it. I'm trying to get a clear picture. I like this forum. You don't have to reply but I hope you do, and can manage it without the rolly eyes.
I'm guessing that I am younger than you based on your inability to think, analyze and learn. Unless of course you're some snot-nosed teen that doesn't really understand anything yet.
I and others have given you the basis for understanding why certain things are the way they are. It's up to you to do some actual learning on your own.