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21 Aug, 7 tweets, 4 min read
VQGAN+CLIP: "Moominvalley by Tove Jansson" (+trending on ArtStation)
+"rendered in Maya", +"Line art"
+"Tom of Finland" (the ultimate Finnish LGBTQ collaboration?) I really love the trees in the background.
That one had a fun instability, shifting from low saturation line art to fabulous jungle. Likely a slow drift along the image manifold to the high dimensional colourful image subspace from the constrained initial state.
+"Simon Stålenhag", "+M.C. Escher" (Again, the ultra-Scandinavianness of @simonstalenhag meshes well with Tove Jansson - note the background detail.)
+Anders Zorn, +Carl Larsson (Yes, the background lakes and birch tree continue. And Mrs Fillyjonk is perfectly at home in Carl Larsson's house.)
+John Bauer. Here I got disappointed, it just went for watercolours rather than any moody deep forests. Still, definite troll feeling.

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More from @anderssandberg

Anders Sandberg Profile picture
3 Sep
#FridayPhysicsFun – I am back home in the apartment where I grew up on the 11th floor. That is about 30 m down to the street, and as a kid I often considered the fate of toys dropped from the balcony. How does falling really work? en.wikipedia.org/wiki/Hagalund
The schoolbook answer is that the gravitational force F=mg accelerates the object as per Newton’s second law of motion F=ma and the falling object has an acceleration a=g because the mass factor cancels from both equations.
The velocity becomes v(t)=gt at time t, and the distance travelled d(t)=(1/2)gt^2. I remember kid-me inverting the later formula to t=sqrt(2h/g) and checking by dropping marbles that they took about 2.47 s to hit the ground. Fortunately nobody got hurt.
Read 17 tweets
Anders Sandberg Profile picture
3 Sep
Yet another rediscovery that simplified abstractions of neurons are simpler than the real thing! quantamagazine.org/how-computatio… To be fair, Beniaguev, Segev & London have a neat way of quantifying it using a kind of circuit complexity: doi.org/10.1016/j.neur…
IMHO the coolest result is that the NMDA receptors contribute a lot of the complexity in biological neurons: leave them out, and things simplify a lot. They are well placed to change properties deeply based on experience.
On the other hand, the fact that even ReLU-sum-of-weighted-input artificial neurons are not just computationally universal but actually work really well for real applications hint that maybe complex neurons are overrated.
Read 4 tweets
Anders Sandberg Profile picture
20 Aug
#FridayPhysicsFun – Normal crystals consist of atoms or molecules arranged in a regular lattice. Recently there has been experimental demonstrations of 2D Wigner crystals – crystals made of just electrons.
quantamagazine.org/physicists-cre…
The idea is pretty old: Eugene Wigner proposed in 1934 that electrons would repel each other and if the density was low enough form a lattice. The repulsion dominates over the kinetic energy and makes it “solid”.
en.wikipedia.org/wiki/Wigner_cr…
Too high density and they “quantum melt” as the kinetic energy dominates and the lattice dissolves. Too high temperature and they melt normally because of thermal vibration. 3D Wigner crystals need a lower density than 2D crystals to solidify.
Read 12 tweets
Anders Sandberg Profile picture
6 Aug
This paper from @CSERCambridge is a great example of systems thinking in GCRs: looking for pinch points where global infrastructure concentrates near natural hazards. nature.com/articles/s4146…
Many things get drawn close to hazards: Teheran is on a fault line that provides good water, container ports on cheap flat land close to the sea vulnerable to storm surge and sea rise, people live in Florida because weather that also enables hurricanes.
Good geothermal and cooling are drawing data centers to Iceland. The Mediterranean and Bay Area complex geology make them attractive but geologically "exciting". en.wikipedia.org/wiki/Marsili
Read 11 tweets
Anders Sandberg Profile picture
4 Aug
"You are standing in an open field west of a white house, with a boarded front door. There is a small mailbox here." (VQGAN+CLIP seems somewhat obsessed with the mailbox.) ImageImageImageImage
"You are behind the white house. A path leads into the forest to the east. In one corner of the house there is a small window which is slightly ajar." Image
"You are in the living room. There is a doorway to the east, a wooden door with strange gothic lettering to the west, which appears to be nailed shut, a trophy case, and a large oriental rug in the center of the room. Above the trophy case hangs an elvish sword of great anti..." Image
Read 7 tweets
Anders Sandberg Profile picture
3 Aug
If the Hampshire et al. thelancet.com/journals/eclin… findings of cognitive deficits in people with long covid hold up they seem to be a strong reason to promote development of cognitive enhancer methods.
Were one to equate the deficits to IQ points and assume a population like this cohort (dodgy, of course) this corresponds to a mean decline of 0.1 IQ points across the population (~0.6 for covid cases). Smaller than typical childhood lead exposure numbers, but still...
While hopefully there is some neat single cause of the cognitive deficits that could be fixed directly, it looks to me more like a melange of bad stuff. Which really suggests a need for general purpose cognitive, energy and neuro-repair enhancers.
Read 7 tweets

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