If a player had dementia 40 tears ago caused by head knocks would we have heard of it? No. However, if they die/or are suffering now from dementia claimed to be from head knocks 40 years ago, we should be hearing about it. Look at soccer, all the names that are having it attributed since Jeff Astles family highlighted the issue. Why not highlight the issue in Rugby League. Drive the point home to modern day players, not to try to look brave and refuse to come off for assessment.