I realize that Wiki is not the preferred reference source here, but I'll go ahead with this question anyway... In the latest iteration of the article on the Standard Model is the statement, "We see that the mass-generating interaction is achieved by constant flipping of particle chirality." Is this a generally accepted consensus? On a related note, when talking about mass in QFT, can I assume this refers only to rest energy? That since QFT does not include gravitation, there is no reference to inertial or gravitational mass?