The claim of using ancient Indian alchemy to turn metal into gold will now be put to the test by experts from MNIT Jaipur using multiple scientific methods. Seven caveats reveal why Marathon Fusion’s mercury-to-gold claims, tied to fusion, are unverified, potentially misleading, and scale-infeasible. Marathon Fusion claims it can turn mercury into gold using fusion neutrons, at 10 times CERN’s 2025 record. Could the technology disrupt gold prices?