I read from economical to ecotourism to my cousin Ryan Chahrour.

He's an economist and you can see what he's up to at his website chahrour.net.

https://sites.google.com/view/chahrour/home

I have very smart cousins. Me...not so much.

He spoke about the fisher equation and you can get more info about it here:

https://en.wikipedia.org/wiki/Fisher_equation

The word of the episode is "ecotone".

https://en.wikipedia.org/wiki/Ecotone

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