Conal Elliott says: Nov 8, 2009 at 12:00 AMHi Liam. I like the clarity and down-to-earth nature of your presentation. One suggestion: I'd avoid any statements about what's "obvious" (or "clear"), which I hear as "in my blind spot" or "compatible with my unquestioned assumptions". If you really know something is so, then just say it. If you're uneasy, then rethink your claim and/or admit your uneas