Over 10 years the Russian Central Bank has increased gold holdings by x4.5
(re)monetization of gold is already in progress
central banks have been consistently buying gold for many years
this is especially true for Russia & China
as more markets develop over gold - so will its usage as collateral in short-term/repo credit markets
it will likely become a more frequent choice for collateral/hedge during the multipolar transition. specially if bond yields continue to exhibit increased volatility

