未来についての発言は事実であることはできますか?


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コンテキストを設定しましょう:

人物Aと人物Bにはグループプロジェクトがあります。どちらにもスライドが割り当てられています(人物AにはスライドA、人物BにはスライドB)

人物Aはスライドを終了しましたが、人物Bは終了していません。

人物A:「スライドを完成させますか?」

人物B:「はい、今夜はスライドを終了します。」人物Bが嘘をついていないとしましょう。

「今夜はスライドを終了します。」事実と見なされますか(将来について)?

彼はそれについて嘘をついていなくても、彼が実際にそうすることをどうやって知るのですか?

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No, person B is stating a future contingent until the truth is actually determined.

Some other statements about the future might arguably be facts though, like "the sun will rise at such time tomorrow".

If person B says "I want to finish my slide tonight" that can be a fact, if it is actually true. What matters is if it's true or not. Whether you know it to be true is a separate question.


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By definition, it is either true now or it is false now that the slide will be finished tomorrow.

The fact that something is true doesn't imply that we know it is true.

A fact is a state of affairs we know to be the case. It is certainly not the case that anyone would know for a fact that some slide will be finished tomorrow. We don't even know that there will be a tomorrow to begin with.

We don't know the future, as far as I am aware, and so we don't know future facts, and we don't even know that there will be a future to begin with.


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Don't need to go far to describe the problem, which is purely conceptual.

A fact is an observation performed in the past (or the present, which is just our short-term memory, that is, a recent past). Not in the future.

A situation that will occur in the future can never be a fact, including the sun coming out tomorrow. It is highly probable, but it is not yet a fact. Person B having the intention to finish does not imply it will occur.