You mean causal decision theory? Omega comes to you and presents two boxes. One is transparent and contains $1000. The other is opaque. Then Omega says "I g

You mean causal decision theory? Omega comes to you and presents two boxes. One is transparent and contains $1000. The other is opaque. Then Omega says "I give you 2 choices: either you take the two boxes, or you take only the opaque one. I have studied your brain, and have predicted your choice. If I have predicted that you will take only the opaque box, I have put $1M in it. If I have predicted you will take both boxes, I put nothing in it." Note that when Omega comes to you, the content of the opaque box is already fixed. So. What do you chose? Decision theory is not solved yet.