Reply: There is a little logical slip here. Let Pi be a precisification of Sam's word ‘that’ that makes it denote oi. All the supervaluationist who holds that Sam's utterance is determinately true is committed to is that for each i, according to Pi, Alex said that oi is a cloud. And this will be true if the denotation of Alex's word ‘that’ is also oi according to Pi. So as long as there is a penumbral connection between Sam's word ‘that’ and Alex's word ‘that’, the supervaluationist avoids the objection. Such a connection may seem mysterious at first, but note that Weatherson's theory predicts that just such a penumbral connection obtains. So if that theory is acceptable, then Schiffer's objection misfires.