We are into our third week of the economics series, and kicking it off with Cryptocurrency. Cryptocurrency is a buzz word at the moment but does it really have a future as a currency? We explore cryptocurrency and blockchain technology with Barney Tan, an associate professor at the University of Sydney. We breakdown blockchain technology to get an understanding for the technology behind cryptocurrency and then dive into all of the work that has to be done in order to mine just one bitcoin! If you want to know more about the cryptocurrency, the energy usage of it  and the future of crypto, then this is the podcast for you! Thank you Barney Tan for all your work and expertise. Time Stamps: 0:00 - Intro to Barney 12:00 - Blockchain 17:00- Types of blockchain 33:00 - Cryptocurrency 45:00 - Energy consumption of cryptocurrency 54:20 - Ethereum and cutting their energy consumption by 99%