Can someone tell me geometrically how the universe is expanding? Like it’s expanding at a constant rate, the observer boundary is moving, it’s expand at a volume per time per volume, but that means the hypotenuse of that volume is expanding much faster. So it must be expanding spherically, but space isn’t just spherical, like the universe might be but space isn’t, so like how does it fill those gaps? Or is it mapping to the universe itself. And if it’s expanding geometrically to the scale of the universe we could calculate the size of the non-observable universe by scaling our measurements up, but the leading theory is the universe is toroidal, but how does a torus expand. Where does this space go, and where are we supposed to anchor our viewpoint of it, because as soon as we do it stops making sense! Like I get it expands into nothing that part i get, but it’s not a constant change if we locally define it. The tessellation doesn’t work/isn’t uniform! How the fuck does gravity play into this anyway wtf!
Images from The Fourth Dimension, a 1904 book about the “tesseract” — a four-dimensional analog of the cube — by Charles Howard Hinton, the British proto-sf writer who coined the term in 1888.
[ID: A link preiew for a youtube video titles, "Great Books: Flatland, by Edwin Abb...", trailing off. The preview shows an assembly with a projector with text that reads, "Edwin A. Abbot, 1838-1926, Published Flatland in 1884 at age 46". End ID.]
listening to this while I add image descriptons to more art and see if any have gotten added to the original posts
edit: no jk it's getting interesting I have to watch it
No Privacy In The 4th Dimension
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The YouTube video No Privacy In The 4th Dimension by the YouTube channel Tibees:
No Privacy In The 4th Dimension
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#JoyofMathematics
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