How Nothing Changed Everything

Save the world one tree at a time! Start using the Ecosia search engine: https://ecosia.co/secondthought How Nothing Changed Everything - Second Thought SUBSCRIBE HERE: http://bit.ly/2nFsvTS WATCH LAST VIDEO HERE: https://www.youtube.com/playlist?list=PL6SJktA-ecJR_Fq2hhYVEFS11cf1YzG27 The number zero is a critical part of modern mathematics, and life in general, but it didn't start out that way...In this video we'll learn a little bit about the history of the number zero!