This is all bull. Anyone who’s had a toddler swing their dense little head at you and was rewarded with a fat lip knows exactly what the hardest material on ear

This is all bull. Anyone who’s had a toddler swing their dense little head at you and was rewarded with a fat lip knows exactly what the hardest material on earth is. My startup, BabySkull.io (YC S23), is exploring this material for defense-related equipment.