evolutionary wise, very far into the future would we develop different mouths and very few teeth?
Pills as food wouldn’t ever catch on, people like too much about food to just settle on eating pills for the rest of their lives. Even though there is a niche who enjoy huel.
It would take a very long time, but eventually teeth would go the way of our tails… that is if we let them.
Teeth could stick around for any number of reasons like pronunciation in language, or even sexual preference like a decoration. Further, as genetic research and engineering develops with tools like CRISPR CAS-9 proteins the human race will eventually be taking conscious control of our own evolution. Whether we would choose to keep our teeth with a diet of pills is a matter of speculation. I would, but who knows.