How did ETFs function during the 2020 market sell-off and did the indexing bubble burst? What ETF structures failed the stress test and which passed.Why were some investors, like Michael Burry, concerned about an indexing bubbleWhat are ETF risks such as flash crashesHow did equity ETFs function during the spring 2020 sell-off and how they can act as shock absorbersWhat were some of the challenges that bond ETFs faced in March 2020How the rise in bond ETFs is leading to changes in how bonds are tradedWhy leveraged ETFs and oil-linked ETFs failed the stress testWhat caused the dysfunction in the U.S. Treasury market in March 2020What are the advantages of ETFs and why they are still a good product for long-term investorsThanks to The Great Courses Plus and Chili for sponsoring the episode.