Prospect of human life extension-- Michael West

He discusses technologies which will enable us to extend human lifespan.

We don't know how long our kids will live. Technology currently working in the lab should extend their lifespans to 120 or so, but in another 50 years, the tech could easily be good enough to extend lifespan to 500 or so.

Attainable lifespan is growing faster than 1 year/year, meaning with each passing year, we gain more than one year of extra life.

Diversity

Inspiration comes from the Wired article on the angels share, which commented that fungus live in every environment, no matter how hostile or artificial.

Thesis: single celled or simple life can maintain more diversity than larger forms, with extreme minority variants able to maintain the barest existence up until they happen upon favorable environments, such as a whiskey warehouse.

The general theme of preserving a few outliers just in case. Most of the time they are not god for much, but every now and then they save the species/civilization.