Sir, I also am 50 years old. Yet somehow, I have learned that I most definitely do not know about many things, and therefore thought this was a safe venue in which to post queries to better understand that which I do not. I am glad that you seem to be a computer expert. Perhaps if you understood tolerance and grace better you'd be able to share your expertise in a kinder manner. It might shock you to entertain the silly notion that I might be more knowledgeable about other topics, yet were it to become clear to me that you had less knowledge or experience to contribute, you could not pay me enough to even tempt me to tell a fellow human being to go away bc they clearly have nothing of value to contribute.