You can perfectly emulate a quantum computer (e.g., https://algassert.com/quirk) yourself. In doing so, you will "achieve" superpositions and entanglement and even do quantum computations.

The goal of quantum computing, as a discipline today, is to do the exact same thing more efficiently and at scale, using the exact same "stuff," but in more clever ways.

Milestones in the media towards this goal are phrased in the same old sloppy ways as the rest of quantum physics. Instead of "scientists have achieved superposition in X," it should say, "scientists have demonstrated the reliable encoding, storage, manipulation, and retrieval of quantum information in X." But who are we kidding? That's never going to happen.