Evolutionists: What is the fascination with the origin of the universe?

For theists, it's a simple answer. God created it. But for believers in evolution, it's like an obsession. Why would you want to know? Why would you need to know? If you're an evolved being, your current state is more sophisticated than your former state. Your future state would be more sophisticated than your current state. What's the obsession with the past? If Bill Gates wanted to make something better than Windows 7, why would he want to go back to Windows 1.0? Just a thought.