I didn’t expect such paper to be questioned on pubpeer at all

Some even forget to remove unnecessary parts of the AI’s answer, check out first sentence of the abstract down there 👇

https://www.sciencedirect.com/science/article/pii/S2468023024002402

Unfortunately, the Chads used wrong argumentation that gets close to populism.

Even so clavicles can be asymmetrical due to previous injury. We are pretty asymmetrical overall if you look closely enough.

Such a small groups are fine for initial investigation, they have enough of a size to be acceptable statistically for most of the performed studies. I don’t think they’d get approval from ethical committee overseeing animal experiments without initial study like this to conduct something on very high groups.

Can you elaborate why do you think that water is improper control?

Those overly negative comments often come from USA. I’ve never had any major problems with self checkout in Europe and I generally go there as it’s faster and you don’t have to race against the cashier. Of course some chains have worse self checkouts, some have better but overall many people like it a lot. Even some older people who are not tech savvy use them.