next question over here hi Elon um my name is Tracy and I'm not here for any reason related to my career or to my area of study I'm actually here as a very cool and only slightly overbearing mother uh to my 10-year-old daughter Harper and a sister to my 14-year-old brother Ben who are both in the audience today and who think of you the way that I guess I thought of Madonna at the same age um [Applause] well that that gives you some warde High Praise there thank you in the spirit of that