The evolutionary thread

This book has tried, chronologically, to tell a history of the Universe that began with the Big Bang and continues up to our existence. In spite of many uncertain details and incomplete interpretations, the remaining gaps have not obscured a clear thread of ascent toward a greater and greater complexity, going from atoms to molecules to life, from bacteria to animals to humans, from early cultures to societies to civilizations.

It now remains for us to ponder on the vistas that we have opened up, in order to try to see what they reveal, and to understand the nature of what could still be concealed. Still following the thread of chronology, as long as it remains useful, let us first consider what could have happened before the Big Bang.

The ‘Augustinian era’

In 1952, George Gamow wittily proposed calling the period that might have occurred before the Big Bang the ‘Augustinian era’, because Saint Augustine was the first to raise the question of knowing what God did before He created Heaven and Earth.