From a 4D perspective would 3D infinity exist?

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thefredman

From the perspective of a 4D observer would 3D infinity appear to exist? Why/why not?

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PeterDonis

Mentor

thefredman said:

From the perspective of a 4D observer would 3D infinity appear to exist?

What does this mean?

mathman

Science Advisor

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Reduce to 3d observer looking at 2d infinity. You will be able to answer your own question.