An extract from the Report of the Re-opened Formal Investigation into the loss of the FV Gaul:
"21.1 What was or were the probable cause or causes of the loss of the GAUL?
A sudden and rapid accumulation of water on the factory deck, (...)
21.2 What possible causes can be eliminated by the evidence which is now available?
All other causes including, seizure, scuttling, fire, collision, explosion, missile attack, torpedo attack, striking a mine, icing, cargo shift,structural failure, grounding, snagging a seabed cable or a submarine.
21.3 What other possible causes remain open?
By definition, probable is something likely to happen but not certain. What is not absolutely certain leaves room for other possibilities. Therefore other possibilities (i.e."all other causes") cannot be eliminated.
"There is no use in trying," said Alice; "one can't believe impossible things.""I dare say you haven't much practice," said the Queen. "When I was your age, I always did it for half an hour a day. Why, sometimes I've believed as many as six impossible things before breakfast." (Excerpt from "Alice in Wonderland")