In addition to my suprising lunch with the food company execs, I found another thing that was very different: that advertising folks dress and talk very differently from geeks.
There are more suits over in our building 33 today than I remember seeing at any geek event. Geeks like building software and cool experiences. These folks want to brand, want to push out messages, want to get you to see their solutions.
When I see oil and water I see business opportunities. People who can bridge these two groups and get them together can create value. Massive value. Remember, the advertising industry is about 10x what the software industry is.