Disclaimer: perhaps the long-standing members of this blog understand the following question and may consider it impertinent. Sincerely, I am just confused (as I think anyone going to the Singularity site would be).

When I visit this page describing the "team" at the Singularity Institute, it states that Ben Goertzel is the "Director of Research", and Eliezer Yudkowsky is the "Research Fellow". EY states (above); "I was not working with Ben on AI, then or now." What actually goes on at SIAI?