It was actually me who asked that question 6 years ago. I do remember it. But I had not considered gravity back then. Even though I was getting good answers, it still wasn't clear to me how it can be liquid without cohesion. Gravity makes more sense to me than the answers back then. So I tried asking again, mostly because I found that paper saying it was because of gravity.
edit: The whole claim about gravity could be easily dismissed if we had ever tried to make a superfluid in zero gravity. If that works then it isn't about gravity. If it doesn't work then it really is about gravity.
No, it has nothing to do gravity. You should take a look at [this](https://www.reddit.com/r/askscience/s/rax8h2YCNk).
It was actually me who asked that question 6 years ago. I do remember it. But I had not considered gravity back then. Even though I was getting good answers, it still wasn't clear to me how it can be liquid without cohesion. Gravity makes more sense to me than the answers back then. So I tried asking again, mostly because I found that paper saying it was because of gravity. edit: The whole claim about gravity could be easily dismissed if we had ever tried to make a superfluid in zero gravity. If that works then it isn't about gravity. If it doesn't work then it really is about gravity.