Last modified: Feb 2021

My continually updated list of thoughts, comments, and open-questions are a bit to short for a full post and/or which I haven’t had time to properly research/back up which are still worth having online. Be warned: it’s quite an eclectic list.

If you have answers to any of the questions or improvements to any of the ideas, send me your comments via email / Twitter.


Feb 2021

The unreasonable ineffectiveness of robots

Robotics has huge seemingly quite large untapped potential. From self-driving to autonomous drone inspectitons to food production to… it’s a huge list which goes on forever. Yet robots (physical systems employing decesion making - not counting the ubiquitous simple electric motors) are fairly sparse in the real world. 2020 was only the first year that automotive manufacturing shipments were less than 50% of the market for robots(!) This is both a huge shame in terms of waste of human labour doing jobs that we could automate away as well as the lost productivity gains that we could have in so many sectors if robots were widely deployed. Some thoughts about why they haven’t been:

Wikipedia Spaced Repetition Plugin

Something I want built that I don’t have time to right now - a plugin combining Wikipedia and spaced-repetition systems. This could be implemented as a browser plugin to crowdsource contributions of spaced repetition cards for key instructional sections on the site. This would eliminate one of the main friction points of using spaced repetition systems - having to create the cards for yourself, made even more difficult when you aren’t well-versed in the topic as you are trying to learn it in the first place! Quizlet is one attempt at this but it isn’t tied to text. I think Wikipedia (or Wikibooks) is a great place to start for a project like this due to the coverage of knowledge, and how often (I at least) go there to learn new information, before promptly forgetting it. It should be feasible to build this on top of Andy Matuschak’s orbit.

What is the relationship between high- level and low- level thinking?

There is a definite tension between thinking in terms of big-picture ideas and low-level technical problems. I’m often not sure how to think about the tradeoffs between abstract and low-level thinking. It’s easy to say ‘start with the basics’, but there are often too many to fit in your head at once and it’s not always obvious what ‘the basics’ means (eg. if you want to learn Machine Learning, do you need to go back and learn about MOSFETs? Probably not but it may come in handy at some stage - you never know…) I also wonder if it is more valuable to think on the frontiers of abstraction or go back to the fundamentals?

See also - esoterophobia

Thoughts on the structure of FIRST Robotics Competition

FRC relies on a pyramid scheme-like model under which they attempt to lean on existing teams to create new ones (by giving prizes and general prestige to teams which have “spread the word”). This is quite distasteful to some - I know I and many others on my team would rail against it. However I think it is also on net quite positive, due to to the asymmetric upside of starting a successful team.

I am far from a social justice crusader, but one aspect of FRC which is disappointing is how unequal access to it is. The model relies on teams being able to access large pools of capital, usually from well-funded schools, the distribution of people able to access it is

Does progress depend on hype?

Anecdotally, it seems like most recent progress in the physical world has been acceleratied or made possible by excitement. Elon Musk’s companies are the most obvious examples, in particular Tesla, which would likely have died without the ability to raise huge amounts of capital very cheaply due to it’s large valuation.

I think the case for hype is 3 fold:

  1. Getting the right people working on the preblem - innovative products won’t get built unless a sufficient number of people are aligned around a vision. This is less neccacary for software products because you can achieve product market fit before, but probably very important for hardware which has huge up-front capital cost.
  2. Funding - similar to 1. SPACs are probably the ultimate manifestation of CapitalxHype (what could possibly go wrong?).
  3. Regulators - if people are excited about a technology they will achieve greater political leverage over regulators who they percieve as standing in their way. Uber, AirBnB, and other gig economy companies were able to bootstrap new societal systems on the back of huge demand from their current and future customers.

Livelock & Notifications

There is a nice mirror between the tradeoff between checking and having notifications for social media, and between interrupts and polling in low-level systems programming. If you are constantly checking insert social media here, you are likely to waste a lot of time and mental space doing this. However, if you have too many notifications you will constantly get distracted. This is very analogous to the tradeoff between livelock and polling in operating systems. If you have to constantly poll a device you will waste CPU cycles doing it, so you may use an interrupt (which overrides the running process once the blocking action is finished) instead of polling. However if interrupts are too frequent, you end up with livelock. I think many people end up livelocked by notifications from social media and messaging, and people should adopt a more polling-based strategy at the margin.

What would a more reasonable school look like?

The academy in it’s assorted forms does a pretty terrible job at encouraging learning. Schools try to hide deficits in other areas by claiming to produce well ‘rounded’ students. In reality, they do anything but. Where are the classes on networking, communication, finance, … the list goes on. There does not appear to be any explicit cognitive model behind the way that they teach; most students forget whatever they managed to learn very quickly anyway. The reason the current somewhat-broken system perpetuaties is because of positional scarcity leading to credential inflation and the role it plays in signalling, but there must be a better way of doing things.