Improvements are always welcome, however;
is there any info documenting that the current crop of good quality helmets are deficient in protecting against injuries or death considering the small amount of space between the noggin and the helmet shell?
I'm asking because I don't know but just because someone was injured or died from a head impact doesn't mean the tech is deficient but maybe more a function of deceleration from high speed to stop within a short distance that nothing will solve, short of no impact that is.
It's fantastic to see better tech but at some point even without an impact, the sudden decel from high speeds will injure or kill you.
I'd like to see helmets get a lot lighter, face shields adjust to varying light instantly and the industry stop trying to make one or two shell sizes and then fill them up with different cushioning to make them fit everyone.
The rider with a tiny head gets more space between head and shell than Mr. Pumpkin.
Few helmet makers do much more than have a very limited variety of shell sizes. We wouldn't buy boots (or any other stuff like jackets, pants) and fill them with padding to fit but we do it with helmets.