How do you define "fundamental thing"? Are we talking primary production here? Or do you mean a stretch of asphalt road for automobiles? Or a steam turbine for thermal electricity generation? a 3nm silicon chip; the factory that makes 3nm silicon chips; the factories that make those factories; a rocket engine; a mRNA vaccine; an office building; a mathematical proof; an astronomical observation; a tank; a nuclear warhead; a computer algorithm; a song; a child?