This video is about the phenomenon of neutrino oscillations, which is where neutrinos can change flavors…
Neutrinos can change flavors (ie, change between electron, muon, or tau neutrinos) because those interaction states are in non-trivial superpositions of the free traveling/mass eigenstates (1, 2 and 3).
[Youtube]
Indeed what is the Arc?
Its a musical instrument carried in times of distress so’s to keep the vibranicity of a lost sense in motion for when and if regenerative oppurtunity arises, yet in a calm sense of covalant awareness this sense is still very much in an every day tommorrow sense due to the fact that its our own reflective vibranicity that first gives purpose in being in the first place, so really it was never lost, it just that the directive sense got misplaced through the busy passage of multiversal existance gradual evolvement.