Thanks Javier!

Those are good points.

About the fix bar, it was a bit of an unconscious decision. I wanted to make it feel like flicking through pretty pictures in a book or reading a presentation. The titles aren't really titles. Getting lost in the long scroll is ok. I didn't want any big buttons or layers. Just type and layout conveying all the hierarchy. Many of us look at so much interface that conveys information everyday that it's nice to see something purely conversational and focused on content.

About the bio, I totally agree and I think I will change it. I want to make the text shorter, add a photo, and add smaller paragraphs with more of my background.