  The hostility between the two cultures, scientific and literary, was framed
by C.P. Snow in 1959 and later by others. The scientific culture is nowadays
often identified with STEM (Science, Technology, Engineering and Mathematics)
whereas the literary culture generally refers to humanities and social
sciences. Wilson expressed the wish for the unity of knowledge. We put forward
the notions of knowledge distance and knowledge consilience threshold to
quantitatively measure distance and coupling process between different branches
of knowledge. Our findings suggest that the gulf between the two cultures is
widening.
