Today is my first true blogiversary -- Preposterous Universe opened for business on Leap Day 2004, so I only get to celebrate once every four years. Here is a random collection of some favorite posts, although this is off the top of my head so who knows what hidden gems were missed?

• Hallucinatory Neurophysics

• The World Is Not Magic

• Is This a Date?

• The God Conundrum

• Quantum Interrogation

• Feminism: Destroying the Planet

• How Did the Universe Start?

Here's to the next four years!