We are at home after a long flight. Waiting during 21 hours in the plane made us fatigue and the jet lag increased that. That was the longest flight I have ever experienced. 15th IBO came to the end without Hans. He was absent in this IBO. "It's pity" many friends and colleagues expressed after knowing that.

Any way I can characterize 15^th IBO as:
*Absence of Hans,
*Holistic questions
*High level security
*A new continent