Originally Posted by Kimmo

IMO breaking spokes is a thing that shouldn't happen on a decent modern wheel, unless you crash it or there's a flaw in the spoke.

Modern and decent means straight pull and low spoke count, ie less than 20/24 (although disc wheels should be at least 24). No elbow to distort and fatigue, putting all the stretch into the thin part of the spoke, and low spoke count means high spoke tension, further avoiding fatigue.

So meh to the question of what happens when you break a spoke - it shouldn't apply to a performance wheelset. Touring or commuting, sure.