The Age of Dark Awakening

Since Earth formed, life has endured for an incredibly long time. Who can say what has happened throughout all those ages?

The Cambrian explosion produced so many species in such a short time, but why have there also been so many mass extinctions? The ruins of powerful prehistoric civilizations can only leave later generations marveling time and again. Where did the first life come from, and what is the meaning of life?

When another opportunity is placed before humanity, which path should it take?