Knowledge Isn't About Truth

Science is not what people often think it is. And it's ultimately about justification. What does the evidence tell us? But the evidence is always going to change. I get mad at anti science people who don't want to take vaccines and things like that, but there are some things about cowde that i don't know. There might be things the medical authorities are wrong about. It's a tight rope you have to walk. We really have no idea whether they're aliens. So why should i think my life is worthless just because a couple centuries old cosmology tells me that there's going to be an trace of human civilization at some point? Now, that's too remote for me