What are your thoughts on our limited definition of life? There are ways in which life could be conducting itself using non-earthly elements/forms that we are yet to discover, e.g. like an intelligent Gas form," also mentioned in this BigThink video: <a href=""https://www.youtube.com/watch?v=NgRigA79J2E"">https://www.youtube.com/watch?v=NgRigA79J2E</a><br>Edit: Lex mentions this at <a href=""https://www.youtube.com/watch?v=JTmxA2MvEqk&amp;t=15m20s"">15:20</a> !"