Kai Lenny interview

[Foamranger]

Just enjoyed listening to "Big wave physics with Neil deGrasse Tyson and Kai Lenny" on the Star Talk utube podcast. Foiling was mentioned, and Kai does a great job explaining his thoughts on waveriding to the non-surfer folks. Thought there must be some other science geeks in the Zone that would enjoy this episode of Star Talk.

[Beasho]

This was a great interview.

I liked the part about the moon being 20X closer to the earth when it formed. 

I remember learning that the moon moves 1.5 inches further from the earth each year.  This means that the moon must have been geosynchronous at one point.  The moon would therefore have only been above 1 part of the earth, locked.

Go back further and the moon would have imparted much, much more gravitational influence on the earth.  According to Neil's calculations 20^3 power meaning 8,000 times as much influence as today.

So with tides that were ~ 8,000 times greater, meaning thousands of feet high, how could life on the surface of the earth ever have evolved?

Said another way terrestrial life probably had to wait until the tides stopped washing them away to get a foothold. 

https://startalkmedia.com/show/big-wave-physics-with-kai-lenny/