Disasters At Sea Why Ships Sink

WHY NO CHECKING OF SEA ROUTES BEFORE SAILING?

   WHY NO ACCURATE WEATHER FORECASTING ON SEA ROUTES DURING SAILING PERIOD? 
    EVERY DISASTER FOLLOWS CHAIN OF EVENTS THAT CAUSED FAILURE.
    HUMAN BEING IS ENDOWED WITH SUPERIOR INTELLIGENCE TO COMPREHEND CHAIN OF EVENTS THAT  CAUSED FAILURE.