Peter Singer explains how Bill Gates and Warren Buffett are changing the world like no other humans in history.

Singer is the Ira W. DeCamp Professor of Bioethics in the University Center for Human Values at Princeton University and Laureate Professor in the School of Historical and Philosophical Studies at the University of Melbourne.

He teaches and lectures about the ways in which we can change the culture of giving in affluent cultures.

But having done that I could give more and save more lives or I could donate to charities that are restoring sight in people who are blind because of cataracts for example. And again there's many that I could.

So where do I stop? And I don't think there's any straightforward answer that question that applies to everybody. People find their own limits, I know some people in the effective altruism movement who said,

“I'm just going to live on a basic income.”

Read the full article by David Anderson about effective altruism on Yahoo Finance