If one looks at the more basic topics, we have dozens of tags for any one these topics.
E.g.
kinematics :
{ motion velocity acceleration suvat-equations jerk position etc. }
{ forces momentum velocity acceleration motion newtonian-mechanics lagrangian-formalism hamiltonian-formalism hamiltonian
equations-of-motion etc. }
{ maxwell-equations electricity magnetism magnetic-fields electric-field gauss-law etc. }
However, for more advanced topics, e.g. string-theory, we have just one tag.
Are we supposed to:
Merge all the more specific tags for basic subjects?
Add new tags for advanced subjects?