Before revision:  We further show, that it is smaller than 4/3 as conjectured in literature. This shows a large number of functions appearing in biological networks belong to a class that has a very low average sensitivity, which is even close to a tight lower bound.
After revision:  We further show, that it is smaller than 4/3 This shows that a large number of functions appearing in biological networks belong to a class that has a very low average sensitivity, which is even close to a tight lower bound.