Once again you seem to think this debate is revolving around you, and don't understand that this is a common theme that arises again and again throughout these discussions
However as you have decided to claim that this has "been explained" and ignored, let's for the continuity of this thread answer the following very simple questions.....
1.Bang your head against the wall with a helmet on and without if it hurts less with a helmet does it prove anything?
2.Bang your head against the wall with a canteloupe on and without and it hurts less with a canteloupe does it prove anything?
Make it as simple as you like for us thickies?
While in gedankenexperiment mode try answering this one too:
1. Stand upright and get someone to swing a piece of 2x4 an inch above the top of your skull
2. Repeat with a helmet on.
Which hurt most?