Your ridiculous assertion is so damn funny because we have empirical proof with Mac OS X that it is false.
Clearly supercomputing clusters choose linux only because it costs nothing, as closed-source companies would be able to produce a better closed solution easily.
Science may not be limited to supercomputing but since you have no evidence of science being dominated by linux, that hardly matters, does it?
On a personal note I'm pretty confident of this claim, you may want to check my occupation.
The internet may use some open source software, but since it uses a lot more closed-source software, my assertion that closed-source dominates still holds.
Funny how you've now lowered the bar to whether the internet uses any open source software at all.
PS. desktop machines != the internet.
Hilarious how you keep repeating "there is no incentive, there is no incentive" like a mantra, yet cannot come up with a single argument against the two incentives I gave in my original post, ie reduced costs through code sharing and allowing outside innovation to easily take place and be paid for.
As you gain no reduced costs through code sharing and your competitors can just re-use your open code and keep any improvement to themselves. You end up with the inferior product and go out of business, well done.
Come back when you can come up with an advantage to this model. Until then I guess you'll just keep on with infinite faith in your ideological, hippie view that everyone shares for the benefit of the world and no one would exploit the weakness of your model for personal gain. Naive would be an understatement.
That means either a) there are valid arguments against my hyrid model but you are too dumb to come up with them since you clearly know no economics and have no business experience or b) perhaps there is no worthwhile counter-argument to my hybrid model.
You seem to believe giving away your investment to competitors that can build upon it and keep improvements to themselves isn't an issue, this is unrealistic. You seem to have this ideological view where everyone shares for the benefit of humanity but this is pure fantasy.
I bought Mac OS X 6 years ago because of Darwin and the unix apps that are part of it and can be run on it, as do a lot of geeks who buy Mac OS X nowadays, so you're wrong that Darwin doesn't matter.