Yeasayer aren't complacent & aren't afraid to try new things or reinvent the old. I like to think that is what the title Amen & Goodbye is in reference to.
Liars' WIXIW is an entertaining listen and I really do agree with ALF when he say's it reminds him of Kid A. Listen to this album, Liars did a great job with the electronic vibe. Also watch this random clip about the making of WIXIW.