How many are there in a book? http://buylevitra.in.net/ levitra generic While Birch will certainly influence the path that Bebo takes, he’s keen to point out that he won’t be in control day to day. That responsibility will fall to Shaan Puri, the 25-year-old chief executive of Birch’s “ideas lab and personal incubator” Monkey Inferno. “We hired a younger, better-looking version [of me]”, Birch jokes. “In the tech world, I feel past it because I’m 43.”