Now the debate on use of batting helmets and improving them will run. The problem is helmets help but they don't guarantee a batsman's safety.
Had Hughes been struck, say, a couple of inches away from the point of impact, he may have given his head a shake and carried on trying to nail a place back in the Australian side for the opening test against India next week.
Such are the vagaries of the human body. Instead Hughes got desperately, tragically unlucky.
He was struck on the back, left side of his head - that is he had completed his attempted hook shot. He was ahead of the ball delivered by his former New South Wales teammate Sean Abbott.
Spare a thought for the shattered Abbott in all this. No amount of consoling, well-intentioned "chin up mate, it wasn't your fault" words will ever remove the moment for him.
Hughes, who came from country northern New South Wales to the big smoke at 16, epitomised the little Aussie battler so beloved in that country. He would have turned 26 this Sunday.