According to Coindesk, a US Department of Energy lab has been studying the performance of three popular cryptocurrencies in Reddit chat. Data analysts at Pacific Northwest National Laboratory (PNNL) measured the speed and scale of discussions on Bitcoin (BTC), Ethereum (ETH) and Monroe (XMR) on Reddit. The study was funded primarily by the Defense Advanced Research Projects Agency (DARPA). In this study, they analyzed data for three years from January 2015 to January 2018. Among the three cryptocurrencies, they found that Bitcoin was the most discussed, with 3,600 comments per day. Ethereum and Monroe have an average of 500 and 380 comments per day. PNNL's research also shows that people respond more quickly to Bitcoin posts, which takes an average of 11 minutes, and spends an average of 20 minutes and 27 minutes on posts with Ethereum. The discussion about Bitcoin is also the fastest growing, followed by Ethereum, then Monroe. Invalid posts posted by Bitcoin and Ethereum (those that did not receive any comments) are five times as many as Monroe.