Exchange - the meaning of meeting

Why meeting in real life when we have the internet? There is one good reason, at least, and that is the sharing of experience. Of course, the inputs by experts are interesting and sometimes challenging but that can all be found at the internet.
The most valuable moment are when we meet over a cup of coffee in between all the power-points and figures and facts. Like on this picture. Maybe the UNFCCC should put in some more coffee breaks to get a bit happier and the outcomes could be a bit more positive