Physical limitation of gold put pressure on people to use gold IOU. As time had passed the rug pull occured a.k.a Nixon Shock. These days, something similar has been happening. Some #Bitcoin-ers use #Bitcoin IOU instead of #Bitcoin and think this IOU is useful. If we don't do anything, it is clear what will be happened. It likely will be called Adam Shock or Blockstream Shock. As we can see from the past, the market doesn't gaurantee situation being better. Gold failed due to the physical limitation which can't be solved. On the other hand, #Bitcoin is software which can be improved. We must find the solutuon so as not to fail again.