Aw, don’t be a sore loser.

I can’t engage with your point on its merits because it’s not relevant to the argument that I’m making—it’s a complete non-sequitur.

You want me to prove that the periodic table doesn’t predict undiscovered elements? What does that have to do with where people direct their effort and attention?

This is why the tomato fruit/vegetable example is so useful: it’s about what facts are useful to whom. It actually has nothing to do with the periodic table at all, that just happens to be a particularly prickly thorn for stem majors.