Some of the most fascinating topics covered this week are: Medicine (Dr. Devi Shetty talks about his life and profession), Economics (IMF confirms that 'trickle-down' economics is a joke; Why UBI is a bad idea), Technology (Elon Musk on video games and simulation), Politics (Why Hong Kong's protesters are braving tear gas and rubber bullets), Literature (Amitav Ghosh's Jnanpith address and book 'Gun Island'), Health (Science's newest miracle drug is free) and Water Management (India's water crisis and how traditional methods can work as panacea)