Aircrafts fall out of the sky. Ships sink.
The ocean is vast, and deep. There are also currents underneath.
Finding something, even know the entry point, several weeks later, is tough. Several years, decades later, is really remote.
Here is another thought. When was the last reported Bermuda Triangle plane/ship/whatever disappearance that you heard of? Anything, say, in the last 10 years? Hmmm. I haven't either.
"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?