Yes, it’d be scary to learn that they could be among us without us knowing. Scientifically speaking, this would be extremely unlikely (I’m assuming by being human you mean not only sharing with us appearance, but also genome and reproducible with us), so it would certainly raise big questions in the science community.
Funnily, this is how I usually imagine aliens, as portrayed in some sci-fi movies and comics.
Yes, it’d be scary to learn that they could be among us without us knowing. Scientifically speaking, this would be extremely unlikely (I’m assuming by being human you mean not only sharing with us appearance, but also genome and reproducible with us), so it would certainly raise big questions in the science community.
Funnily, this is how I usually imagine aliens, as portrayed in some sci-fi movies and comics.