It is not confirmed that neutrinos travel slightly faster than light, but what if it were? Why would neutrinos travel superluminally? I have a possible explanation. The speed of light is
c = 1/sqrt {permittivity*permeability}.
The permittivity of free space is epsilon = 8.854187817620... × 10−12 F·m−1.
The permeability of free space is µ0 ≈ 1.2566370614...×10−6 H·m−1
If both the permittivity and permeability were decreased slightly, then the velocity could increase slightly. But neutrinos are electrically neutral. As such, they don't interact with electric and magnetic fields.
If neutrinos don't have to interact with electric and magnetic fields, then how would they know that the permittivity and permeability of free space was less? They wouldn't know. Could that be the reason why neutrinos can travel faster than light?