[cauch]

But they will not make the same mistakes. If you ask two persons to build a software, they can use the same logic and build the same algorithm, but what are the chances they will do exactly the same bugs.

Also, your argument seems to be "_maybe_ they will use the exact same setup". So it already looks better than the solution where you provide the code and they _will for sure_ use the exact same setup.

And "publish the details" corresponds to explain the logic, not share the exact implementation.

Also, I'm not saying that sharing the code is bad, but I'm saying that sharing the code is not the perfect solution and people who thinks not sharing the code is very bad are usually not understanding what are the danger of sharing the code.

[pegasus]

Nobody said sharing the code "is the perfect solution". Just that sharing the code is way better and should be commonplace, if not required. Your argument that not doing so will force other teams to do re-write the code seems unrealistic to me. If anyone wants to check the implementation they can always disregard the shared code, but having it allows other, less time-intensive checks to still happen: like checking for cherry-picked data, as GP suggested, looking through the code for possible pitfalls etc. Besides, your argument could be extended to any specific data the paper presents: why publish numbers so people can get lazy and just trust them? Just publish the conclusion and let other teams figure out ways to prove/disprove it! - which is (more than) a bit ridiculous, wouldn't you say?

[cauch]

> Just that sharing the code is way better

And I disagree with that and think that you are overestimating the gain brought by sharing the code and are underestimating the possible problems that sharing the code bring.

At CERN, there are 2 generalistic experiments, CMS and ATLAS. The policy is that people from one experiment are not allowed to talk of undergoing work with people from the other. You notice that they are officially forbidden, not "if some want to discuss, go ahead, others may choose to not discuss". Why? Because sharing these details is ruining the fact that the 2 experiments are independent. If you hear from your CMS friend that they have observed a peak at 125GeV, you are biased. Even if you are a nice guy and try to forget about it, it is too late, you are unconsciously biased: you will be drawn to check the 125GeV region and possibly notice a fluctuation as a peak while you would have not noticed otherwise.

So, no, saying "I give the code but if you want you may not look at it" is not enough, you will still de-blind the community. As soon as some people will look at the code, they will be biased: if they will try to reproduce from scratch, they will come up with an implementation that is different from the one they would have come up with without having looked at the code.

Nothing too catastrophic either. Don't get me wrong, I think that sharing the code is great, in some cases. But this picture of saying that sharing the code is very important is just misunderstanding of how science is done.

As for the other "specific data", yes, some data is better not to share too if it is not needed to reproduce the experiment and can be source of bias. The same could be said about everything else in the scientist process: why sharing the code is so important, and not sharing all the notes of each and every meetings? I think that often the person who don't understand that is a software developer, and they don't understand that the code that the scientist creates is not the science, it's not the publication, it's just the tool, the same way a pen and a piece of paper was. Software developers are paid to produce code, so code is for them the end goal. Scientists are paid to do research, and code is not the end goal.

But, as I've said, sharing the code can be useful. It can help other teams working on the same subject to reach the same level faster or to notice errors in the code. But in both case, the consequence is that these others teams are not producing independent work, and this is the price to pay. (and of course, they are layers of dependence: some publications tend to share too much, other not, but it does not mean some are very bad and others very good. Not being independent is not the end of the world. The problem is when someone considers that sharing the code is "the good thing to do" without understanding that)