Comment on I gotta up my toxicity

• jaybone@lemmy.zip ⁨3⁩ ⁨weeks⁩ ago

  YOUR MOMS BRA SIZE IS A 2D PROJECTION

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  • EmpathicVagrant@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

    Well yeah, that’s how it fits on the tag.

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• Hazmatastic@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  And this is a 2d image of a 3d projection of a basic 4d shape that we literally cannot comprehend

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  • MonkderVierte@lemmy.zip ⁨2⁩ ⁨weeks⁩ ago

    It’s not. The walls shown here are impossible, get clipped, but the shape itself is 3D.

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  • RogueBanana@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    Don’t know what you are talking about. I can perfectly comprehend it, it’s a gif with moving colours.

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• Siethron@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

  We’ve never seen anything 2 dimensional. Everything we can see has some form of all 3 dimensions in it. Even shadows are 3 dimensional. We conceptualize them as 2 dimensional on a wall, but they have depth. (Think of how when you see a line it’s actually 2 dimensional due to the width of the line, then apply that concept to depth as well)

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  • angrystego@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    A shadow is not the same as a line drawn by a pencil. And a 2d line can be for example the contrast of two colours, the “line” that delimits an object from your perspective - these are no drawn lines with any width, they are not there as full 3d objects. I would think a shadow is a similar case, just as a film projection. It has no thickness.

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    • Siethron@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      Well shadows are the absence of light, so defining them is a little weird, but they exist the entire distance from where the light source is interrupted to where they are projected on, same with projections, it’s not just what’s on the screen, but the light the whole way to the screen.

      Even ignoring that, the surface that a projection lands on has texture and depth.

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      • angrystego@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

        Well, you can definitely ignore that and just take thw projection and view it as something 2d. The fact that the surface is structured doesn’t mean the projection is not 2d - it is 2d curved in the 3d dimension, just like a 1d line can be curved without gaining any thickness. Just like our 3d space is curved.

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      • Buddahriffic@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

        A shadow is a 2d projection of a 3d object projected back onto 3d space.

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• partial_accumen@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  Two dimensional projections can be represented in three dimensional space. Even single dimensional entities are welcome here.

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  • Tyrq@lemmy.dbzer0.com ⁨3⁩ ⁨weeks⁩ ago

    If you look at a sheet of paper on edge, you can see a poor man’s representation of one dimension, while hiding an additional dimension, made in the only way you can actually have a thing to hold with yet one more

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