A connection or exchange of thoughts, words, ideas, and information. :)
Plagiarism or not paying attention. i'm still new to this stuff so im sorry if its wrong.
I have not heard of such a system. Perhaps the closest system to which your question describes is a democracy. If the question has multiple answers, tell me them, and I can better assist you.
After age 20 you lose about a gram of brain mass per year.
