Are you the very model of a singularitarian?
Speaking of transcendental or catastrophic change, this book on Armageddon Science looks interesting. Here's an interesting interview with the author, discussing various end-of-humankind scenarios.
What's the most likely extinction scenario for humankind?
Later: How do we avoid such scenarios?
In related news, have you seen the Google Ngram Viewer? Interesting tool for seeing word usage in the books that Google has scanned. Note how "natural philosophy" reaches peak usage in the early 1800s, while "fuck" saw its peak usage from the late 1600s to the early 1700s, appearing almost not at all from the early 1800s through the 1960 or so. "Extinction" doesn't see much regular use until the late 1700s, becoming more popular ever since. What can we learn from these trends? Just sayin'.