The book is over half a century old now, so the numbers may be a bit off, but this sort of conversation always reminds me of this quote

"Behind every man now alive stand thirty ghosts, for that is the ratio by which the dead outnumber the living. Since the dawn of time, roughly a hundred billion human beings have walked the planet Earth."

-Arthur C. Clarke, 2001: A Space Odyssey

We're even older than that! There is compelling evidence that Homo Sapiens has existed for 400k years, and there's unprovocative evidence that we've been around for 250k years or so.

More adults are alive now than adults who died.

Most of humanity didn't survive to adulthood.

If the population quadrupled in your lifetime you must be over 100 years old?

Plus, I'm pretty sure that days are always about 24 hours long 🙃

Depends a lot on your definition of winter. In Scandinavia, winter is defined as starting December first.

I guess it depends on if the nose grows with untrue information, or lies.

Because if it's lies all he needs to do is THINK it's the truth and his nose won't grow.

If his nose grows because the information is not true, then this is one hell of a power. You could get him to theorise on the meaning of life.

2 weeks!

Oh this one for sure.

looking here https://en.wikipedia.org/wiki/Woolly_mammoth and here https://en.wikipedia.org/wiki/Great_Pyramid_of_Giza tells me that the last woolly mammoths died around 4000 years ago and the pyramids of Gizeh were built around 4500 years ago.