Zeppelin - What's the Best Song on the Album?

When you came out, like there was no one who could do what you do. What have you learned about everybody, including yourself as a player? Is it that you learn to get worse in order to reach the core of the song? Like how does it change at the time? Yeah, for me it's like about song writing. It's about trying to improve on that front. I just don't think I was like naturally a songwriter when the band first got together.