Classical concepts of time confronted philosophers with perplexing paradoxes. Some wondered whether time altogether was nonexistent, whereas others doubted the reality of its divisibility into parts by arguing that the past ceased to be, the future does not yet exist, and the present as a moment/now that is without magnitude (i.e., like a mathematical point is not part of time). In addition, it was unclear whether time progressed smoothly or proceeded by way of discontinuous and divisible leaps.
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