# Source note — Schrödinger cat nanoparticle superposition source check

Date retrieved: 2026-06-25

## User-supplied video

- Title: Schrödinger’s Cat Just Got Real (Scientists Can’t Explain It)
- Channel / video author: Julia McCoy
- URL: https://www.youtube.com/watch?v=vlahV4NoVzo
- Duration: 10:35
- Upload date in retrieved metadata: 20260625

## Primary evidence anchor

- Nature paper linked in the YouTube description: "Probing quantum mechanics with nanoparticle matter-wave interferometry"
- DOI: 10.1038/s41586-025-09917-9
- Journal/date/pages: Nature, volume 649, issue 8098, pages 866–870, published 2026-01-21
- Authors listed by Nature metadata: Sebastian Pedalino; Bruno E. Ramírez-Galindo; Richard Ferstl; Klaus Hornberger; Markus Arndt; Stefan Gerlich
- Key abstract facts retrieved from Nature page: sodium nanoparticles containing more than 7,000 atoms and masses greater than 170,000 Da showed quantum interference; reported macroscopicity μ = 15.5; the page describes the work as matter-wave interference with large metal clusters.

## Editorial handling

The Managing Expectations article treats the video as a useful science/meaning commentary, not as proof that consciousness creates reality, that theology is scientifically proven, or that "scientists cannot explain it" in the sensational sense. The primary experiment is real and peer-reviewed; the metaphysical interpretation remains open.

## Author notes

Julia McCoy's own public channel/site pages describe her as founder of First Movers, an AI/marketing educator, and the operator of a human-run AI-clone YouTube channel about AI news, quantum technology, career change, and meaning. Those are self-descriptions and are labeled as such in the article.