Reminds me of the phenomenon that we don’t know what we don’t know, and don’t realize when we’re operating from outdated information we learned in school. (Is Pluto or is Pluto not a planet now, I can’t keep track 😂) Related to the shifting baseline of long scale observable changes.
I’m still not fully convinced viruses don’t belong on the tree of life — they feel like parasitic life. There are life forms that steal all their energy from other organisms and that rely on other species to reproduce. They contain genetic information, they have a reproductive method. Why can’t life be extra-cellular?