Two side remarks: ITER is expected to cost >€20B, achieving fission cost $23B as estimated in hindsight. You say the cost of fission is roughly equals that of f

Two side remarks: ITER is expected to cost >€20B, achieving fission cost $23B as estimated in hindsight. You say the cost of fission is roughly equals that of fusion, but fission is ITER + past projects + perhaps future project. 1. That implies that the total cost of past fission projects was a very small fraction of ITER's cost. 2. I find it difficult to believe that an eleven-digit hindsight estimate excludes military costs, let alone that the beancounters couldn't/wouldn't estimate "much of the cost".