Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Geometry from Another Universe

falsifian.org

Post reply on HN
Print view View original

51–60 of 91 posts

Re: Geometry from Another Universe

#51

Post by pumnikol »

ryandrake wrote: post #14
mark_l_watson wrote: post #3

I had a dream a year ago in which I was traveling at very high speed towards an edge of our universe. In the dream I entered a null space before entering the next universe in which all star systems obeyed solid state physics type laws: stars formed an outer lattice and planets in small lattices around stars. After traveling through the second universe in my dream, I then entered a third universe that was more compact…

Wow, if you’re having these dreams without the aid of substances, I envy you. The most intellectual dreams I seem to be able to come up with “unenhanced” are falling off buildings and being late to college exams while having no pants on.

I actually had a similar type of dreams as mark_l_watson when I took quantum chemistry (that's not a drug... for most people). Since I switched to performing more mundane tasks for a living, my dreams shifted to me hopelessly trying to navigate the very real, although warped and endlessly labyrinthine, dim interior landscapes of my university's library which I last visited more than 10 years ago. It was built around 1970 and it is a kind of trip during waking hours already.

Re: Geometry from Another Universe

#52

Post by robotnikman »

all2 wrote: post #17
ryandrake wrote: post #14

Earlier quoted context omitted.

Wow, if you’re having these dreams without the aid of substances, I envy you. The most intellectual dreams I seem to be able to come up with “unenhanced” are falling off buildings and being late to college exams while having no pants on.

My favorite are the dreams I have before a semester starts: it is the end of the semester, and I've just discovered I've forgotten about an entire class for most of the semester. Then I wake up.

For some reason this is a reoccurring dream for me as well, and its been a few years since I've taken a class.

Re: Geometry from Another Universe

#53

Post by skc »

all2 wrote: post #17
ryandrake wrote: post #14

Earlier quoted context omitted.

Wow, if you’re having these dreams without the aid of substances, I envy you. The most intellectual dreams I seem to be able to come up with “unenhanced” are falling off buildings and being late to college exams while having no pants on.

My favorite are the dreams I have before a semester starts: it is the end of the semester, and I've just discovered I've forgotten about an entire class for most of the semester. Then I wake up.

My version is me running late for an exam and then frantically searching for the exam room the entire time as the clock ticks down.

The wave of relief and euphoria that overcomes me when I wake up is literally spiritual.

Re: Geometry from Another Universe

#54

Post by selimthegrim »

all2 wrote: post #17
ryandrake wrote: post #14

Earlier quoted context omitted.

Wow, if you’re having these dreams without the aid of substances, I envy you. The most intellectual dreams I seem to be able to come up with “unenhanced” are falling off buildings and being late to college exams while having no pants on.

My favorite are the dreams I have before a semester starts: it is the end of the semester, and I've just discovered I've forgotten about an entire class for most of the semester. Then I wake up.

Had those about high school recently and I'm 35 and in grad school.

Re: Geometry from Another Universe

#55

Post by mikewave »

zackmorris wrote: post #19

Does anyone know of a good visualization of a hypercube? Specifically, I'd like to be able to rotate it around various axes to see what its shadow looks like in 3D. On that note, a VR rendering might help since a 2D projection overcomplicates the shadow. It's easy to construct, just build a point, extrude the point out to make a line, extrude the line out to make a square, extrude the square out to make a cube, then…

Back in the day this Java applet by the famous Ken Perlin was fun: https://mrl.cs.nyu.edu/~perlin/demox/Hyper.html

Recommendation: Your brain actually has two depth perception systems: hardware (using your two eyes for parallax) and software (using visual cues to establish a 3D scene, the way you can with one eye, or when looking at 3d projections onto a 2d surface).

Use each depth perception mechanism for a different axis! In this old applet you could enable stereo projection and also thick-lines-mode which really helped this, and gave me a strong intuitive feeling for the motions of the hypercube.

Re: Geometry from Another Universe

#56

Post by felipemnoa »

all2 wrote: post #17
ryandrake wrote: post #14

Earlier quoted context omitted.

Wow, if you’re having these dreams without the aid of substances, I envy you. The most intellectual dreams I seem to be able to come up with “unenhanced” are falling off buildings and being late to college exams while having no pants on.

My favorite are the dreams I have before a semester starts: it is the end of the semester, and I've just discovered I've forgotten about an entire class for most of the semester. Then I wake up.

>>it is the end of the semester, and I've just discovered I've forgotten about an entire class for most of the semester. Then I wake up.

I used to have this exact same dream for years after graduating from college.

Re: Geometry from Another Universe

#57

Post by colordrops »

throw10920 wrote: post #45
ck45 wrote: post #40

Earlier quoted context omitted.

This is extremely common, I googled a lot about it some years ago. I have it in two versions, the first one is that I have to repeat a maths course in school, being aware about the age difference with the other students, the other one is missing a course in university and not having graduated. The latter one feels so real that in the beginning I had to remind myself about having been at the graduation ceremony :)

I wonder why it's common? Easiest explanation would be extreme stress/mild trauma from the stress of college...

I'm guessing that it's because (at least at my university), the college class experience is pretty anonymous. No one is taking roll and won't notice if you don't show up. You sit in class as an observer, mostly quiet, almost like a disembodied ghost. The experience is already very dream like and easy to dissociate from. This in addition to the stress of the experience makes it prime dream material.

Re: Geometry from Another Universe

#58

Post by blarg1 »

all2 wrote: post #17
ryandrake wrote: post #14

Earlier quoted context omitted.

Wow, if you’re having these dreams without the aid of substances, I envy you. The most intellectual dreams I seem to be able to come up with “unenhanced” are falling off buildings and being late to college exams while having no pants on.

My favorite are the dreams I have before a semester starts: it is the end of the semester, and I've just discovered I've forgotten about an entire class for most of the semester. Then I wake up.

I wish someone had told me about these dreams before I went to school/uni, so I wouldn't have ever slacked off causing me to have these worries in the first place.

Re: Geometry from Another Universe

#59

Post by rossnordby »

blarg1 wrote: post #58
all2 wrote: post #17

Earlier quoted context omitted.

My favorite are the dreams I have before a semester starts: it is the end of the semester, and I've just discovered I've forgotten about an entire class for most of the semester. Then I wake up.

I wish someone had told me about these dreams before I went to school/uni, so I wouldn't have ever slacked off causing me to have these worries in the first place.

If it makes you feel better, they can still happen anyway! yay!

Re: Geometry from Another Universe

#60

Post by tabtab »

ryandrake wrote: post #14
mark_l_watson wrote: post #3

I had a dream a year ago in which I was traveling at very high speed towards an edge of our universe. In the dream I entered a null space before entering the next universe in which all star systems obeyed solid state physics type laws: stars formed an outer lattice and planets in small lattices around stars. After traveling through the second universe in my dream, I then entered a third universe that was more compact…

Wow, if you’re having these dreams without the aid of substances, I envy you. The most intellectual dreams I seem to be able to come up with “unenhanced” are falling off buildings and being late to college exams while having no pants on.

> being late to college exams while having no pants on.

An upgrade would be 4D underwear.

Post reply on HN