# Is/was any physical thing actually infinite?

**URL:** <https://boards.straightdope.com/t/is-was-any-physical-thing-actually-infinite/645973>\
**Category:** Factual Questions\
**Created:** [January 3, 2013, 5:20pm UTC](https://boards.straightdope.com/t/is-was-any-physical-thing-actually-infinite/645973 "2013-01-03T17:20:39Z")\
**Posts on this page:** 1\
**Page:** 3

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**Author:** ![Exapno\_Mapcase](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/exapno_mapcase/32/1051_2.png) [@Exapno\_Mapcase](https://boards.straightdope.com/u/Exapno_Mapcase)\
**Post date:** [January 7, 2013, 1:31pm UTC](https://boards.straightdope.com/t/is-was-any-physical-thing-actually-infinite/645973/41 "2013-01-07T13:31:07Z")

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> [@Superhal](#):
>
> I got two ideas here:
> 
> 1. The subatomic world: as technology allows us to look at smaller and smaller things, we keep finding smaller things to look at.

We don’t know if this is true, and most current theories deny this.

> [@](#):
>
> 1. One way to define “infinite” is constantly growing or expanding. I’ve had a couple of vines in my backyard that would fit this definition, and would definitely overrun the entire neighborhood if left unchecked.

This is not a definition of infinite. Things that are infinite, by definition, are incapable of growing.

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