jeff:<p>i'd like strongly to encourage you to offer your opinions on things on which you are nonexpert. having only experts allowed to opine, with experts also relaining monopoly on experts, leads to echo chambers.<p>however, you seem to be reacting to a different article entirely. nowhere did the article mention simulations. if you look at Stodden's CV (the woman whose talk motivated the article) she's a statistician. The need for code-sharing is in fields like climate and bioinformatics where people's analyses lead to changes in politics, policy, pharma/health, etc; not for people deciding whether lorenz goes chaotic at precisely the right bifurcation parameter value.<p>more and more and more science is becoming statistical and data-driven. chaotic dynamics, though very important, is not the issue here. it's analysis of complex data coming from real-world systems.<p>there are many interesting and wise comments in this thread but they are almost all about an article on simulations -- ie. not the article the OP points to.