Mt Everest had its first documented climb in 1953.

The first person went to space in 1961.

It's kind of crazy to think about how "new" mankind's spread over the world is. My father was already a teenager the first time someone climbed Everest, and in his twenties by the time someone went to space.

If we start the "modern era" as roughly coinciding with the telecommunications age (ie the dawn of the cross-continental telegraph in the1860s), it's less than two consecutive human lifetimes old.

Everything is new.