In Ancestor's Tale [highly recommended] Richard Dawkins describes the incredible sensory organ that is the Duck Billed Platypus's bill as a marvel of evolution. He points out that "being primitive is not a full time way of life."
Likewise, neither is being wrong.
Most predictions are just shoveling the present into the future and often they look silly after a few years.
Your example cite doesn't help your case. Nokia shares have been in the toilet since the Microsoft debacle. As soon as former MSFT VP Elop made a big move at Nokia (the burning platform speech), the stock dropped 20% in a week, and continued down ever since.
More than anything Gruber was pretty much right. How different (read: better) is Nokia's position compared to Yahoo?
Likewise, neither is being wrong.
Most predictions are just shoveling the present into the future and often they look silly after a few years.
http://daringfireball.net/linked/2009/08/12/microsoft-nokia
Gruber is just being a bully.