You were a force of nature, there really is no ither way to define you. Intellectually, you took everything to the next level, you inspired everyone and from one small thought great ideas were always born, out of conversations with you. Emotionally, because you would walk into a room and everyone would sit up a little straighter and smile a little wider, and light up a little. And generally, because no team, no room, no project were ever the same after you joined them. You brought the joy of life with you wherever you went, and you made it impossible not to respect you, to love you, to want to be your friend. Personally, you “saw” me when many did not, and you believed in me always, and so many times in the last few years I had the urge to call you and say “thank you, your were right, I did it” and I hate myself for not having done this enough. So many times we planned to have drinks when I was in London but life was just too busy, and now I feel just too stupid. What I would not give to sit across from you one more time, clink my glass to yours and say what I should have said many times. You were a wonderful friend, and you were always there when I needed you, and you made me think smarter and laugh harder. THANK YOU for pushing me to do the things I do now, and I love so much. And I am so incredibly sorry for the people from whose lives you have been removed. I cannot express my grief but please know I will always owe it to Mark to help in anywayI can, should there ever be one.