Is email the diary of the future

Today we look back 100 years ago and find clues in people's diaries. 100 years from now, people will look back at us and find clues in our email archives. I bet the email archives will tell much more than the diaries!

Quantum Sociology

Can unit interactions of people have a butterfly effect? Could one person make the whole world happier? Can a smile prevent a war?

-we affect everyone around us and are affected by them, smiling makes you happy and makes other people around you happy
-being around positive people makes you positive