Excellent point! This is what I get for posting in haste.
ETA: However you can extract more than $1000 if you assume that at least one of Harry and Draco would rather the other of them win than Hermione. No counterfactuals needed.
Excellent point! This is what I get for posting in haste.
ETA: However you can extract more than $1000 if you assume that at least one of Harry and Draco would rather the other of them win than Hermione. No counterfactuals needed.