Originally Posted by
AlexZ
I hope this is an unsuccessful attempt at humor because it is bordering on utter nonsense.....
Especially the "if a helmet cracks or breaks, that helmet failed to do it's job" part.
With the prevailing bicycle helmet design of in-mould microshell, the styrofoam liner dissipates energy by destructive deformation, i.e., cracking. If impact is severe enough, the thin, tough outer cover will crack too.