In reply to Franco Cookson:
> There's a chasm of difference between safe with a running belayer and dying.
That's a bit of a meaningless statement. Dying is a bit of a binary condition - either you are or you aren't.
- how fast does the belayer have to run?
- how big is the 'chasm' you refer to?
- what's the terrain like they're running over?
- what happens if they trip part of the way to the 'safe' position?
- what do you mean by 'safe'?
- does losing a limb / ending up as a vegetable (as a consequence of the fall) count as serious?
In other words, it's a soundbite - but not a helpful one.