In several texts, some authored by himself alone and some in collaboration N. D. Belnap proposed a pragmatist approach to predictions and further speech acts such as promising, betting, and wondering, in an indeterministic setting within a branching structure that shapes the future course of events. In the joint paper "Future Contingents and the Battle Tomorrow", M. Perloff and N. E. Belnap discuss Aristotle's famous example in the context of STIT-logic. In particular, the paper studies the pragmatics of predictions of future contingents under the background of the 480 BCE battle of Salamis: the general commanding the Greek Athenian fleet predicts that a battle will be fought on the sea while the Spartan general denies it. According to Perloff and Belnap's analysis, this kind of prediction is neither true nor necessary at the moment of utterance, but can be vindicated or impugned, retrospectively. The central thought of the present paper is that vindication is a dialogical process associated to statements made. In the particular case that the statement expresses a prediction, the dialogical process involves plays on the settled past truth of the predicted contingent future. This way of analysing Tomorrow's Sea Battle highlights the interplay of the ontological perspective and the linguistic perspective, where vindication or impugnment of the predictions are under scrutiny.