The stability of atoms, stars, and people depends on finely tuned physical laws and constants in the local universe. But are they fixed throughout space and time?
Thanks to a unique cluster of properties, water is able to fulfill many roles essential to our living planet.
What complexity there is in our water cycle, which brings life to many organisms and at the same time replenishes and renews itself.
The basic thesis of TPP is that the best places for intelligent observers are also the best places for observing.
Can we explain human technology merely by supernova explosions and blind chance? In rare earth elements, we find hints of a better explanation.