@isomeri: McLarens pr strategy is starting to take effect i see. Every article says hes not gonna race to not risk _another_ concussion but i dont think there is a single statement from McLaren or the hospital that says he even had a first concussion. He fainted before or after the crash and either nobody knows why he fainted or they keep it a secret.
Ron Dennis confirmed that Alonso lost consciousness for a brief period of time (a few seconds) after the impact, and he was confused when rescue crews reached him (Was unaware he was in an f1 car, what he was doing, etc.) His concussion was confirmed a while ago. He was fully braking before impact (Which is what raises eyebrows as something being weird...) The crash was more of a latitudinal impact instead of longitudinal therefore the hans device was not much help. His helmet hit both sides of the cockpit, with both impacts being significant g-loading events.