Final sessions of the day.
First, Janna Levin discussing Light.
Great discussion of relativity, space and time. Levin very eloquently highlights how #insignificant we really are, & how we really know nothing
Final panel: Astronaut Augury
![](https://cdn-images-1.medium.com/max/1600/1*GbOSOy1t2BFjh_c3CQ-G2A.png)
![](https://cdn-images-1.medium.com/max/1600/1*VARE0odJH_D41LgZWF38DQ.png)
![](https://cdn-images-1.medium.com/max/1600/1*VgXk53qc1pcICzywXzbDGQ.png)
great way to end the day. much food for thought