Technology

59589 readers

3077 users here now

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago

MODERATORS

-64

Don't let the media and the masses fool you, It is possible to visualize 4D (www.youtube.com)

submitted 2 months ago by i_have_no_enemies@lemmy.world to c/technology@lemmy.world

7 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] deadcade@lemmy.deadca.de 21 points 2 months ago (4 children)

Wasted my time watching this. 23 minute video that repeats itself so often there's only ~30 seconds of information. It feels very AI-generated. And it is not possible to "visualize 4D", the video does not prove otherwise.

[–] cbarrick@lemmy.world -2 points 2 months ago* (last edited 2 months ago) (2 children)

And it is not possible to "visualize 4D"

Sure it is.

3 spatial dimensions + time
3 spatial dimensions + 1 color dimension (grayscale)
2 spatial dimensions + 2 color dimensions
etc

And that's not even counting projection. All the time we interact with 3D data that's projected to 2D (almost every photo you've ever looked at). There are similar ways to project 4D to 2D.

(Not defending the video or anything, just pointing out that visualizing higher dimensions is something we know about for ages.)

[–] deadcade@lemmy.deadca.de 5 points 2 months ago (1 children)

I took a shortcut when typing that, quoting the OP instead of further explaining. It is definitely possible to visualize 4 datapoints, but not 4 spatial dimensions. The only way to do so is to project to lower dimensions or take a lower dimension slice and display that. That works for 2D slices/projections of 3D objects because we already have a full understanding of 3D. It does not work for 2D projections of 4D objects, similar to how "flatlanders" couldn't make sense of a 2D or 1D projection of a 3D object.

[–] cbarrick@lemmy.world -3 points 2 months ago

I see. Yeah, obviously the world only has 3 spatial dimensions, so you can't represent 4D data spatially.

My general point is that we have additional senses that we can use to represent additional dimensions. And that totally counts as "visualization".

load more comments (1 replies)