Imagine a world with no wars, no possessions, no borders and no religions. Imagine no guns in the streets, no need to lock the doors and no fear in the eyes of children. Now open your eyes. Its December 8th. On this day in 1981, everyone realized how fragile this dream of a perfect world was. Peace as we imagine it, is impossible. Its just too well defined. In physics, fragility is defined as the number of possibilities for something to be "fixed" vs the number of possibilities for it to be "broken". Imagine how unlikely it is for a world without any jealousy, dispute or other kinds of animosity to sustain itself. So what can we expect, realistically? Surely we should hope for things to be better than they are today. Of course we do. What is needed to reduce fragility, is tolerance or in other words, acceptance and forgiveness. Let us accept the fact that not everybody will love and understand everybody. Let us understand that there will always be suspicions, grudges and conflict of interests, but let us find the ways to create a social order that keeps those in check and educates us to deal with them, not in a naive way but a realistic one. John Lennon was a man who used to be mean to his woman and beat her, and keep her apart from the things that she loved. But he changed his ways and became a symbol of how we can still grow as individuals and as a society toward the light of love and peace. And yet, his tragic and violent death stands as a reminder of how brutally realistic we must be while doing so.