“…5 is the conclusion. Things not looked at include: firstly, any derivation of relative motion equations by second variation of standard lagrangians, this has been done for strings [10], secondly, anything to do with spin, fermions, torsion, vector fields, or fluids, geodesic deviation has been generalized to include spin [7], thirdly, any study of gravitational waves [8], fourthly, any detailed investigation of the relationship between relative motion equations and field equations, fifthly, any application of the equations to specific configurations except maximal symmetry. For a lagrangian theory , with action I, the momentum and hessian are:…”