Janet Yellen (the 78th United States Secretary for the Treasury) spoke Friday morning on CNBC’s flagship business and politics show Squawk Box on an array of topics such as the growth of the renewable energy sector amid Russia’s economic isolation, the rising levels of inflation and Federal Reserve responsibility and her current perspective on digital assets.

Recognizing the multitude of technological and societal advancements within the cryptocurrency space over the past few years, Yellen offered a friendlier more receptive tone than on previous occasions, stating that crypto is “now playing a significant role, not really so much in transactions, but in investment decisions of lots of Americans.”