Financial markets assume cable redundancy that does not exist at critical chokepoints

Global financial transactions (SWIFT, FX trading, settlement systems) depend on submarine cables for inter-exchange connectivity, with architects assuming N+2 redundancy. But at geographic chokepoints (Strait of Malacca, Red Sea, English Channel), all redundant cables pass through a corridor narrow enough that a single event (earthquake, sabotage, anchor drag) can sever all of them simultaneously. The 2006 Taiwan earthquake severed 8 cables simultaneously, disrupting Asian financial markets for weeks. This persists because cable operators route through chokepoints because they are the shortest path (cheaper to build), and financial regulators do not audit the physical diversity of their members' underlying telecom infrastructure.