They may warm each other as a result. Sometimes the brush enhances further development of one of the ideas. The sparks may lead to brilliant breakthroughs. Brush, merge, collide. These are only suggestions of the possibilities.
Serendipity occurs in all places and at all times, making possibilities infinite.
I visit a site and like its format. I copy it with a little modification, as my own. Someone else visits my site and makes further changes for her purpose. It's as though you're part of a never-ending brainstorming session. Personal Choice People are individuals on the Internet.