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Of course if you store “7000 notes” in a PKM you should expect most of them to be useless, unless you’re doing science and most of them are literature notes or something (remember the guy who “invented” zettelkasten worked as a researcher). Ordinary mortals can get by with a lot less.

I have maybe a few hundred notes on the handful of topics that matter to me and that’s it.


Yes. If you can afford it (around 100 $€ will get you a basic one) and you expect to use it more than once, it'll save you a lot of grief.


Super cool! Where did you get the problems from?


The paper in question: https://arxiv.org/pdf/2206.07682


The preprint is from 2022 and the article from 2024. There may well be more recent research that builds on this paper.


Regular shifter cables can and are also routed through the frame.

Expensive road bikes (as well as the ones professionals ride) use e-shifters without any problems. These are made by companies that have some expertise in manufacturing shifters. They’re very expensive, though, as they’re made for road racing, not for regular bikes like the ones VanMoof made.

VanMoof wanted to do everything themselves and found out the hard way that was a bad idea.


The interesting thing here is that the human brain also seems to use pretrained ... things. For vision, use the visual subsystem. For hearing, use the auditory subsystem. For movement ... you get the point. Plus you can combine these pretrained ... things, so for example for complex movement, like balancing on a tightrope, multiple subsystems are used (try standing on one leg with your eyes closed).

Z-vectors are of course nothing like the subsystems in your brain, but general the approach is certainly similar to how the brain works.


> things

Senses?


For sight and hearing, yes, but is "language use" a sense?


In the strict sense, no, but as a system of communication, yes; organisms need some form of sensory perception to communicate or 'sense' language.


Sort of. According to the text they can use multiple z-vectors (sets of weights that select for parts of the system to be used to answer a specific question) simultaneously, using a "simple optimization algorithm" to determine the relative weight for each of these vectors.


Not just as a cyclist. As a pedestrian in one of those huge Asian metropolises with absolutely bonkers traffic, you should never ever make eye contact either. It’s the only way drivers will stop for you.


Really? I've seen a number of drivers in Shanghai stop for me while I'm just standing in the middle of the road, waiting for a clear spot in the traffic.

Actually, I got a fairly strong feeling that Shanghai traffic has gotten noticeably less crazy over time, but I can't rule out that I was just observing the local traffic of different regions of Shanghai at different times.


Haven’t experienced Shanghai personally but ten years ago in Xi’an and Chengdu, yes, this sometimes was the only way to cross roads. In Jakarta and Bangkok, however, this always is the only way. Compared to those cities, however, the traffic in Chinese cities I’ve seen was always very organized.

In Iranian cities, however …


> Also, for whatever reason, European clothes cleaning systems are insanely harsh, and your clothes don't last nearly as long when washed there. I think it's related to the energy efficiency requirements; the dryers are much much hotter (if they are available at all) and the washers have to use miniscule amounts of water so they use a lot more agitating instead, I suppose.

Wait, what? The one time I visited the US and had to use laundromats I could basically thrown away everything I’d worn on that trip because hose washing machines were so harsh.

Back home in Europe, my clothes last years and sometimes even decades.


The article also alludes to this, but doesn’t make it specific:

It doesn’t necessarily say much if a paper cites a paper that has since been retracted.

> Unlike (retracted, 2015) we found …

Or

> While (retracted, 2021) focused on … the present study concerns …

You’d need to do much more in depth analysis to determine to what purpose a retracted study was cited before you can establish whether there is a problem or not.


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