You want to know how super-intelligent cyborgs might treat ordinary flesh-and-blood humans? Better start by investigating how humans treat their less… - Yuval Noah Harari

To survive and flourish in such a world, you will need a lot of mental flexibility and great reserves of emotional balance. You will have to repeatedly let go of some of what you know best, and learn to feel at home with the unknown. Unfortunately, teaching kids to embrace the unknown while maintaining their mental balance is far more difficult than teaching them an equation in physics or the causes of the First World War. You cannot learn resilience by reading a book or listening to a lecture. Teachers themselves usually lack the mental flexibility that the twenty-first century demands, since they themselves are the product of the old educational system.

The most common theory points to the fact that men are stronger than women and that they have used their greater physical power to force women into submission. A more subtle version of this claim argues that their strength allows men to monopolize tasks that demand hard manual labor, such as plowing and harvesting. This gives them control of food production, which in turn translates into political clout. There are two problems with this emphasis on muscle power. First, the statement that men are stronger is true only on average and only with regard to certain types of strength. Women are generally more resistant to hunger, disease, and fatigue than men. There are also many women who can run faster and lift heavier weights than many men. Furthermore, and most problematically for this theory, women have, throughout history, mainly been excluded from jobs that required little physical effort, such as the priesthood, law, and politics, while engaging in hard manual labor in the fields....and in the household. If social power were divided in direct relation to physical strength or stamina, women should have got far more of it. Even more importantly, there simply is no direct relation between physical strength and social power among humans. People in their sixties usually exercise power over people in their twenties, even though twenty-somethings are much stronger than their elders. ...Boxing matches were not used to select Egyptian pharaohs or Catholic popes. In forager societies, political dominance generally resides with the person possessing the best social skills rather than the most developed musculature. In fact, human history shows that there is often an inverse relation between physical prowess and social power. In most societies, it’s the lower classes who do the manual labor.

Another theory explains that masculine dominance results not from strength but from aggression. Millions of years of evolution have made men far more violent than women. Women can match m

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.)