How do you know if it's such a huge secret? Do you have a private channel where bankers talk to you about their plan or something? I don't know, it sounds like you're just seeing what you want to see. It doesn't make sense for them to abandon gold even if they're going to buy more crypto, because it has a good record for a hundred years now. Most people still don't think crypto is as safe as gold, so there's a huge chance they'll just withdraw their money from the bank if they know about this.