The prediction specifies a 20–30 year window starting from July 2021 (i.e., until 2041–2051). As of the current date (late 2025), only about four years have elapsed, so the timeframe has not expired.

Empirically, there is no widely accepted, practical room‑temperature, ambient‑pressure superconductor in use for energy transmission or storage today. The most advanced confirmed superconductors with very high critical temperatures are mainly hydrogen‑rich hydrides that require extreme pressures (hundreds of GPa), which makes them impractical for grid or storage applications.(chemistryviews.org) High‑profile claims of room‑temperature superconductivity at more accessible pressures—such as carbonaceous sulfur hydride and N‑doped lutetium hydride—have since been retracted by Nature after serious doubts about data and reproducibility.(en.wikipedia.org) The 2023 LK‑99 episode likewise ended with a consensus that LK‑99 is not a room‑temperature superconductor at ambient pressure.(en.wikipedia.org)

Because (1) the key enabling technology (practical ambient‑condition superconductors) has not yet appeared, but (2) there is still ample time remaining in the 2041–2051 window, the prediction cannot yet be judged right or wrong. Hence: inconclusive (too early).