Share ideas, and they will multiply.
“The single biggest problem in communication is the illusion that it has taken place.”
George Bernard Shaw
Well that’s the thing. An idea itself, and the thoughts, emotions and context associated with that idea that you try to communicate are fundamentally unique to you. It is extremely difficult to fully and efficiently convey an idea: the other person will intrinsically have a different set of subjective attributes and connotations associated with the message you will have expressed.
Therefore, your idea automatically becomes a different idea once shared with someone else. Your original idea remains, and a “child idea” is born. Also, as you expose your idea, different possible interpretations of it might even give birth to yet another set of ideas.
So if each person shares an idea, both end up with at least 2 different ideas each, which makes the total of ideas 4 at minimum. So, don’t be shy, share ideas, they will multiply.