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Full Idea
The idea that only the present is real cannot be sustained. St Augustine pointed out that the present has no duration; it is a mere boundary between past and future, and dependent on them. It also denies truth-value to statements about past or future.
Gist of Idea
The present cannot exist alone as a mere boundary; past and future truths are rendered meaningless
Source
Michael Dummett (Truth and the Past [2001], 5)
Book Ref
Dummett,Michael: 'Truth and the Past (Dewey Lectures)' [Columbia 2004], p.74
A Reaction
To defend Presentism, I suspect that one must focus entirely on the activities of consciousness and short-term memory. All truths, of past or future, must refer totally to such mental events. But what could an event be if there is no enduring time?
Related Idea
Idea 1902 Since Socrates either died when he was alive (a contradiction) or died when he was dead (meaningless), he didn't die [Sext.Empiricus]
| 17243 | Past times can't exist anywhere, apart from in our memories [Hobbes] |
| 8196 | The present cannot exist alone as a mere boundary; past and future truths are rendered meaningless [Dummett] |
| 22937 | If the present could have diverse pasts, then past truths can't have present truthmakers [Le Poidevin] |
| 14405 | How can a presentist explain an object's having existed? [Merricks] |
| 13998 | Objects in the past, like Socrates, are more like imaginary objects than like remote spatial objects [Markosian] |
| 13999 | People are mistaken when they think 'Socrates was a philosopher' says something [Markosian] |
| 22987 | The past (unlike the future) is fixed, along with truths about it, by the existence of past objects [Baron/Miller] |