Elon Musk of Tesla cars is someone worth listening to and his promo tape regarding his newly opened factory is worth spending a little time listening to him. https://www.bing.com/videos/search?bq=gigafactory&&view=detail&mid=C35B065DCE67C0C42F73C35B065DCE67C0C42F73&FORM=VRDGAR
That is the link. It is 26 minutes long, so get that spare half hour slotted into your day.
