Re: Perens has two shots at winning.
"Expert witnesses don't have opinions in court, they give authoritative statements of fact under oath."
I used to give evidence as an expert witness, albeit in a different field. As an expert I had access to a body of factual information that a lay witness might not (e.g. tables of blood group frequencies) but essentially what I offered was an opinion. The court would accept that as evidence where it wouldn't accept a non-expert's opinion. Experts can offer contradictory opinions in which case, as with any other witness, the jury has to make up its own mind.
Nevertheless a court might well hold Perens more responsible for his opinions that the man down the pub.
Biting the hand that feeds IT
