Stetoscope

I love this video because it exactly shows how collective histeria comes. First, the guy is alone, it is a bit ridiculous to see him dancing like this all alone. When the second guy arrives there is a kind of risk : will they fight? Will they stop togther laughing of themselves… When the third guy arrives we understand how exciting it is just to free-dance like this on the grass during a sunny afternoon. Suddenly the balance turns from look at those funny guys to that is so cool, I want to be with them. And people start to scream, and a first group of people arrives, the another… more and more screams and everybody gather in a collective joy.

It is here the first collective joy or histeria, I have ever seen from start to end in three minutes. I think it shows and explain what happened on larger scale for beatlemania or facebook success. It is very interesting for pearltrees. Let’s try to identify the factors that makes this collective histeria happens :

1. everybody hear and can see what happens => communication or visibility
2. it takes one minute before the first group join and the collective hysteria starts at two minute laters => time
3. a surnatural excitment from those who are experiencing the free-dance => testimonial
4. people that shows there is no cost of entrance (no shame) => Free or not expensive

The second challenge which is not in the video is how long will they dance? That was in the bealtes amazing creativity, in facebook amazing platform and that will be in pearltrees amazing interaction between the community and the platform.