On: UW fusion reactor concept could be cheaper than co...

[mikeash]

A lot of the cost will be ongoing operating costs, and a lot of that probably can't be easily predicted without operating experience. Of the expenses involved in running a fission plant (even in a hypothetical generous regulatory regime), how many of them could have been accurately predicted in, say, 1930?

[DennisP → mikeash]

Sure, costs could be somewhat higher than expected. All the more reason not to go with designs that have very high expected costs to begin with.