[smueller1234]

I used to work in particle/astrophysics. By and large people weren't opposed to sharing their data and software. The degree of specific expertise it took to get results was staggerng though. It takes significant technical infrastructure and expertise to even just rerun an analysis on a big corpus of data. At that stage, you haven't even validated squat, just pushed some buttons to run other people's logic. Doing this properly takes person years of effort with little to no reward.

In practice, there's usually at least two big experiments (not necessarily quite of the same generation) that were built by different groups which corroborate results. This is currently the best defense against big mistakes.