I don't know the answer. Maybe no one knows. Maybe when you grow up, you'll be the first to find out.

Our children long for realistic maps of the future that they can be proud of. Where are the cartographers of human purpose?

If you wish to make an apple pie from scratch, you must first invent the universe.

The immense distances to the stars and the galaxies mean that we see everything ins pace int he past, some as they were before the Earth came to be. Telescopes are time machines.

Chlorine is a deadly poison gas employed on European battlefields in World War I. Sodium is a corrosive metal which burns upon contact with water. Together they make a placid and unpoisonous material, table salt. Why each of these substances has the properties it does is a subject called chemistry.

It does no harm to the romance of the sunset to know a little bit about it.

If you are only skeptical, then no new ideas make it through to you.