Why are international central banks actively repatriating physical gold and expanding their bullion reserves right now?

Central banks understand the fundamental vulnerability of purely digital ledgers. The Dutch central bank recently repatriated eighty-six tons of physical gold from North America to prepare for potential systemic crises. Similarly, leadership at Poland's central bank pointed out that in an era where global accounting records are entirely digital, physical bullion serves as the ultimate hedge if someone pulls the plug on the international financial architecture. The institutions that print fiat currency are aggressively buying the one monetary asset they cannot print.