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Is Tree(3) ‘real’?
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Hi. Non-mathematician here so go lightly.

I’m fascinated for some reason by unimaginably huge numbers such as the above. I realise this quickly gets into the realms of philosophy, but is there an agreed position on whether such numbers actually ‘exist’? I mean this in the sense that (a) we don’t know what the actual value of it is and (b) we never could, in that there isn’t enough space in the universe to write it down even if we did. So it’s literally unknowable and always will be given the laws of physics.

BTW I like the fact that we know the equally absurd Graham’s number ends in 7!

https://plus.maths.org/content/too-big-write-not-too-big-graham

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4 years ago