query: How can the universe by infinite when it has known start and finite time since?
positive_passages.docid: 63748
positive_passages.text: What does it mean that the universe is "infinite"?
negative_passages.docid: 111008
negative_passages.text: Show that $X $ is a infinite set ,it is connected in the finite complement topology?
negative_passages.docid: 124618
negative_passages.text: How can we know the time frames for events in the early universe?
negative_passages.docid: 47082
negative_passages.text: If spacetime itself is expanding, how could we ever tell?
negative_passages.docid: 101201
negative_passages.text: How do we know the size of the universe?
negative_passages.docid: 43888
negative_passages.text: Age of universe?
negative_passages.docid: 7209
negative_passages.text: Present continuous and simple future
negative_passages.docid: 65001
negative_passages.text: Universe from nothing?
negative_passages.docid: 119336
negative_passages.text: Zero energy universe
negative_passages.docid: 60084
negative_passages.text: In a very small static universe with only a particle, does it make sense to talk about time?
negative_passages.docid: 20680
negative_passages.text: Does infinity exist in physical systems?
negative_passages.docid: 81943
negative_passages.text: How to finish proof that $T$ has an infinite model?
negative_passages.docid: 106211
negative_passages.text: Is the universe isomorphic to a universal turing machine?
negative_passages.docid: 27567
negative_passages.text: What is zero times infinity?
negative_passages.docid: 127656
negative_passages.text: How to prove that if $A$ is infinite and $B$ is finite, then $|A\cup B|=|A|$?
negative_passages.docid: 29426
negative_passages.text: Is there a proof of existence of time?
negative_passages.docid: 95295
negative_passages.text: Is the Universe Past-Eternal?