"The Mermaid Theory" is a great How I Met Your Mother episode. I loved Ted's plot in this episode. It was funny. The Captain was really creepy with inviting Ted on his boat but it was funny how Ted thought The Captain was going to murder him. I love how Future Ted got the Barney/Lily story mixed up because it actually shows his age. I love how Lily actually is pregnant in the future and I really want to see why Ted was wearing a dress. The Mermaid Theory was entertaining when Marshall has to explain it to Robin during their awkward dinner. I know it's weird, but I kind of wish Marshall viewed Robin as a mermaid instead of a manatee. I give this episode a 9/10.





