I should expand upon my comment. Anyone who claims that, "I will argue further that moving to a signal-based, synchronous software model will not only result in an improvement of several orders of magnitude in productivity, but also in programs that are guaranteed free of defects, regardless of their complexity" is not to be taken seriously.

Anyone who is really interested in this model of computation would be far better off reading this: http://jpaulmorrison.com/fbp/

At least J. Paul Morrison doesn't claim that his approach is infallible. Indeed he goes to some length to point out the troublesome areas and techniques to address them.

The author of the OP, Louis Savain, has some other strange ideas also: http://scienceblogs.com/strangerfruit/2008/01/laugh_along_wi...

Does it also pay to think Revelations contains secret truths about biology/physics and that almost all the great physicists of the 20th century were crackpots? http://www.rebelscience.org/Crackpots/nasty.htm

Savain has been promoting COSA for years, yet he refuses to implement it or even give precise semantics for it. Even giving him the maximum benefit of the doubt, the best thing you could say about COSA is that it's interesting; there's no evidence that it works or that it has any benefits.

Also, calling him a crackpot doesn't help, since it just reinforces his persecution complex.