He reckons a sentence like "Learnist is the mobile product for curating and following complete learning experience" is worth adding to an email? Good grief! I actually have less idea of what it is than I did before I read that, and I've never even heard of it. If you're keeping track, that's negative knowledge. No, I didn't know that was possible either. You live and learn.

Seriously, though: if you have a business, and you can't explain what it's about without making people's brains bleed, perhaps you should go work for Google instead.