and the other i think potentiality is that some crack developed. water starts to through shoot through and you basically create the get grand canyon in a millisecond. the water comes in and it s like an explosion and it blows the vessel apart. according to oceangate the titan could dive nearly 2 1/2 miles. it was not that deep when it imploded. they say it s construction involve the innovative use of modern materials. this is another 3 1/4 inch thick titanium dome bolted to another titanium piece glued to the carbon fiber. reporter: that connection, the glue and the modern materials, the copper and fiber will be aced focus for investigators. is inappropriate for a vessel that sees external pressure. reporter: james camera, directed titanic and dived into the record to the wreckage himself 33 times.