I learned a long time ago that you can not rely on central banks to protect your position. The trader landscape is littered with blown accounts by those who bet on central banks.
So, the question is whether this is another one of those times with the BoJ being called out on its intervention threat as USDJPY trades through the next presumed line in the sand at 155.
With 155x now taken out, this is the only level on a chart that has any meaning as USDJPY trades to a new 34-year high.
So, 155 will determine whether the market will push higher into uncharte3d waters.