This is REALLY interesting, yo.
According to Wilhelmsen, “when a mooring line snaps, it moves at up to 800km/h…Snap back accounts for a staggering 53% of mooring accidents, according to the UK P&I club, with a sobering 1 in 7 of those accidents resulting in fatalities.”
What a cool, innovative solution to try to prevent these accidents.
Also, this brings back vague memories of reading about snap back incidents with games of tug-of-war. Pretty rough stuff for a “fun” game, but I guess those accidents too have resulted in ropes that are specifically designed for the stress of tug-of-war.