In contrast, humankind ascended to the top so quickly that the ecosystem was not given time to adjust. Moreover, humans themselves failed to adjust. … - Yuval Noah Harari

I have participated in numerous private and public debates about gay marriage, and all too often some wise guy asks ‘If marriage between two men is OK, why not allow marriage between a man and a goat?’ From a secular perspective the answer is obvious. Healthy relationships require emotional, intellectual and even spiritual depth. A marriage lacking such depth will make you frustrated, lonely and psychologically stunted. Whereas two men can certainly satisfy the emotional, intellectual and spiritual needs of one another, a relationship with a goat cannot. Hence if you see marriage as an institution aimed at promoting human well-being – as secular people do – you would not dream of even raising such a bizarre question. Only people who see marriage as some kind of miraculous ritual might do so.

Today, the richest 1 percent own half the world’s wealth. Even more alarmingly, the richest one hundred people together own more than the poorest four billion.

In year 1500, there were about 500 million Homo Sapiens in the entire world. Today, there are 7 billion. The total value of goods and services produced by humankind in the year 1500 is estimated at $250 billion, in today's dollars. Nowadays the value of a year of human production is close to $60 trillion. In 1500 humanity consumed about 13 trillion calories of energy per day. Today, we consume 1,500 trillion calories a day. (Take a second look at those figures — human population has increased fourteen-fold, production 240-fold, and energy consumption 115-fold.)