For centuries, an incident like this would have been recorded as "SV Concordia lost at sea with all hands, unknown location." I just finished reading the biography of the British mountaineer and sailor H W Tilman, who departed at age 80, with a substantial crew, on a sailing vessel from a South American port for the Falkland Islands in 1978, with the ultimate end of sailing and mountaineering in the Antarctic. They were never heard from again.

Technology is wonderful, but it is complicated and intricate, and subject to human judgment. I hope the Brazilian navy will thoughtfully review their procedures.