When asked about the conservation of energy Mr McCarthy says quite frankly that he does not know where the energy that provides perpetual motion comes from. He wonders whether he is somehow harnessing so-called "zero point" energy, a type of residual energy found in a system and first proposed by Einstein.
Zero point energy is the lowest possible energy a system can have and therefore cannot be removed.
He also points out that cosmologists believe in the presence of dark matter and dark energy. Might they somehow help his cause?