Psi.

Psi is a unit of measurement of psychic energy, one psi is the energy used to lift a grown man.  There are also nanopsi, micropsi, millipsi, centipsi, decipsi, dekapsi, hectopsi, kilopsi, megapsi, gigapsi, terapsi, and quadripsi.  One nanopsi is about the amount of energy used to move around dust, or turn a page, while one quadripsi is the amount of energy needed to reshape a two-story house, or create one, furniture and all.  The psi system was invented by the famous German parapsychologist, William A. Ludwig, at around 2026.