Taronite is fictional. The limits around it are not decorative.
Real materials science gives us partial analogies: shear thickening, jamming, field-responsive behavior, and thermal failure. None of that proves Taronite could exist or that a real material can do what the Miracle Metal does.
The scientific grounding serves a different purpose. Every fictional capability must answer to a condition, a cost, or a failure.
Plausibility does not begin when the impossible is disguised as fact. It begins when the impossible has consequences.
Enter the story
Start with Book One, or read Signal Zero, the free, optional prelude.