We know that inequality is on the rise around the world: The richest 1 percent command almost half the planet's household wealth, while the poorest half have less than 1 percent. We know a lot less about why this is happening, and where it might lead.
Some argue that technological advancement drives income disproportionately to those with the right knowledge and skills. Others point to the explosive growth in the financial sector. Liberals worry that extreme inequality will tear society apart. Conservatives argue that the wealth of the rich inspires others to succeed.
What if we could shed all our political prejudices and take a more scientific approach, setting up an experimental world where we could test our thinking about what drives inequality? Crazy as the idea might sound, it has actually been done. The results are worth pondering.
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