basic

A Big Think talk in which hedge-fund manager William Ackman goes through the basics of finance and investing in under an hour. It is pitched as a crash course on the most important concepts.

Elizabeth Warren's 2007 Berkeley lecture, when she was a Harvard law professor, on why middle-class families are under growing financial strain. She draws on bankruptcy research to examine rising costs of housing, health care and education.

Lord David Willetts argues at the Royal Institution that the post-war baby boomers gained wealth and security at the expense of younger generations. He draws on his book The Pinch, covering housing, wealth and social policy in the UK.

David Graeber's RSA lecture on bullshit jobs, expanding on his essay about why so many people do work they believe is pointless. He discusses what this says about the modern economy and the way society values work.

Thomas Sowell speaks at the Hoover Institution about economic and racial inequality and what he considers myths about poverty. He also recounts his early life and brief flirtation with Marxism.

The preface to Herb Gross's MIT OpenCourseWare 'Calculus Revisited: Single Variable Calculus', an older black-and-white lecture series. It introduces his approach to teaching calculus from the basics.

The first lecture of MIT 6.042J Mathematics for Computer Science, taught by Tom Leighton, introducing mathematical proofs. It covers propositions, implication and basic proof methods.