Cruising Catamarans Offshore
UNfortuantely in the real world, it is seldom a matter of "just" anything.
Witness the recent Sydney to Hobart race. Where one of the best monohulls in the world got all the way capsized (stayed that way for four days) and abbandoned, and eventually very expensively salvaged.
They are a cat.0 boat, abolsutely all the bells and whisteles and design specs for maximum safety in offshore racing. But they hit a sunfish with their keel at about 15 knots. Kept sailing for about 12 more hours with not a problem in the world...Until they tacked.
Sure, righting stability is important, but in the end, there is a wide pantheon of things waiting in the wings to surprise you and show you that what you had designed against ever happening actually can.