[Terriergal]

So people who religiously apply sunscreen, or live exclusively indoors, can be expected to live 900 years?

Nope. It doesn't work even a fraction as well. The protective canopy as well as the nutritive qualities it gave to the plants we would have eaten then, are gone.

Said canopy would have also increased atmospheric pressure. I hear that hyperbaric chambers can speed bodily healing.

[Right Wing Professor]

So people who religiously apply sunscreen, or live exclusively indoors, can be expected to live 900 years?

Nope. It doesn't work even a fraction as well.

You have it backwards. Water and ice don't absorb ultraviolet radiation at all, except in the 'vacuum UV' region where oxygen and nitrogen block it as well. On the other hand, your SPF 45 absorbs virtually all of it.

Said canopy would have also increased atmospheric pressure.

How did it stay up there?