Michael Sandel webchat – post your questions now

In the age of TED, MOOCs and other zingy digital acronyms, a teacher who might previously have only been revered within the walls of their institution can break out, put on a hands-free microphone, and assume the mantle of a rock star. Michael Sandel is one such figure.

His class entitled Justice grew to become one of the most popular in Harvard University, for its exploration of moral decision-making that linked Aristotle and Kant through to the problems of today – it then earned a worldwide audience after it was made available for free online.

But everyday justice is just one of Sandel’s many inquiries: he has explored the ethics of genetic engineering, and the moral quandaries created by a shift towards a global marketplace. The popularity of his clearly reasoned, morally anchored arguments has led to hit books like What Money Can’t Buy: The Moral Limits of Markets, as well as a BBC Four serialisation of the Justice lectures.

If you’ve ever wanted to follow him up on one of his points, now is your chance – he is joining us to answer your questions from 11.45am BST onwards, on Friday 24 October. Post yours in the comments below, and he’ll endeavour to ask as many as he can.