I agree, but why do high volumes we see prescribed then (2000m 3x a week).
I am sure you know how easy these paces are that are described. While around the speeds (100m pb/ability) described, I do not have “tremendous work capacity” and have done 2x10x100m in mid 15 walk 50m rest (which is under 40 seconds) without any hint of lactic… Tired, but not lactic.