Described by some as the 'bad boy of European politics', Yanis Varoufakis was the Greek Finance Minister in 2015 at the height of its debt crisis. On the sidelines of the World Capital Markets Symposium 2018, we speak to Yanis on his account of the events -  chronicled in his book 'Adults in the Room' - as well as his thoughts on the future of the EU and global capitalism.