Dr. Neil deGrasse Tyson, TV host and probably the world’s best-known astrophysicist, is scheduled as a keynote speaker at the 2014 PLUS Conference, November 5-7 in Las Vegas. (FYI – rates to attend the Conference increase after Friday, so register now and save $125!)

Recently we at PLUS Blog had the chance to chat with Dr. Tyson about the universe, his personal philosophies and other topics that we found interesting. In case you missed it, you can check out the previous interview clips here.

In our new clip for this week, we ask Dr. Tyson:

Which individual from the 20th Century contributed the most to advancing human understanding?

While his response was not surprising (spoiler alert – he said Einstein), the reasons Dr. Tyson chose Einstein were likely not the ones you would anticipate.

Don’t miss your chance to hear Dr. Tyson speak live in November at Caesars Palace in Las Vegas – Rates increase on Saturday so register for the 2014 PLUS Conference today.