kqr

50 ms·

961.
by kqr 2y ago
Queueing theory is one of my favourite secret superweapons. You can use it to back-of-the-napkin solutions out of feasibility much quicker than it'd take to simulate. I warmly recommend Harchol-Balter: https://www.amazon.com
962.
by kqr 2y ago
You're right. It was wrong to emphasise the speed so much. I've shifted the emphasis to the other benefits one gets from using parser combinators. That was the real story in my head anyway.
963.
by kqr 2y ago
So fun to see other variations of this. I have for a while said > You never need permission to do a good job. But of course, it takes the experience to understand the nuances of what a good job is in the domain at hand, in the organisati
964.
by kqr 2y ago
The libraries I use either have, or at least allow, IO at the base of their transformer stacks, so any IO action is a liftIO away.
965.
by kqr 2y ago
What about Lehman's laws? The first two are important! https://entropicthoughts.com/laws-of-software-evolution
966.
The Surprising Richness of Correlations(entropicthoughts.com)
4 points by kqr 2y ago|0 comments
967.
by kqr 2y ago
Curious since you don't expand on it on the blog: in what way did Haskell's purity make it difficult to you? Having used Haskell in production for a bit now, I don't even notice its purity. Most functions are in some kind of
968.
by kqr 2y ago
> Monads seem to have this strange aura around them that attracts certain kinds of personalities Historical accident. There was a time, not very long ago, when we didn't know applicative functors were a useful separate subset of mon
969.
by kqr 2y ago
> I reckon if you wanted to choose just a single rule it should be, "Write something that you yourself would actually read." This is a good rule, and I think the first test of it is "have you suffered through proof-reading
970.
by kqr 2y ago
I believe some domains use BLUF, for bottom line up front.
971.
by kqr 2y ago
> I really don't see any particular relationship between the shape and its content. This is often the case with geometric metaphors. They catch on easily, but they rarely make a lot of sense on closer scrutiny.
972.
by kqr 2y ago
I have noticed that when I wrote blog posts they tend to fall in one of the two categories. Sometimes I'm trying to share an insight, in which case I make sure not to bury the lede[1]. Sometimes it's the journey to the insight tha
973.
by kqr 2y ago
> When a camera zooms in or zooms out, there is a change in the geometry of perspective. This is the opposite of what happens. The perspective is exactly the same, only cropped to a narrower field of view. Changed perspective would be co
974.
by kqr 2y ago
I strongly agree. > The distinctive feature of Piranesi’s perspective trick is that when you have a series of similar objects receding into the distance, such as houses or arches in a bridge, the nearer versions are just drawn as larger
975.
Looking Back at 20 Years of Tamriel Rebuilt (2022)(tamriel-rebuilt.org)
2 points by kqr 2y ago|0 comments
976.
by kqr 2y ago
Wait, is m slope? I learned it with k (for coefficient) for the slope, and m for the intercept (I don't know why m in that case though).
977.
by kqr 2y ago
I realise now I had probably only thought of c as a natural companion to v because of Qwerty keyboards...
978.
by kqr 2y ago
Granted, I'm not the target audience of your commit messages, but they tell me very little about what happens. > Add characters I can probably tell from the code that that's what's happening. But what requirements drove th
979.
by kqr 2y ago
You must do it on a mine. If you do it on a clear square it is revealed and you lose points.
980.
by kqr 2y ago
I felt like a good strategy was to react quickly to when other players revealed large parts of the board, and immediately mark the "obvious" mines in there even though I was looking at another part of the board. Though now that I
981.
by kqr 2y ago
That's what I'm saying. If we're discussing an r² of 70 % on a population level they don't need to track anything to achieve that, just use the weight. So before we can say whether 70 % is good or bad we need to know mor
982.
by kqr 2y ago
Why are they reporting correlations as percentages? That's incredibly misleading. If one wants a more intuitive measure of concordance than the correlation, one could use the coefficient of determination, which is the correlation squar
983.
by kqr 2y ago
> no brand can be accurate on energy expenditure because it depends on a lot more things than what the watch can monitor. I was going to quip that I can probably look at a person and state their energy expenditure with 70 % accuracy (w
984.
by kqr 2y ago
I warmly recommend setting up a recurring donation of, say, 0.5 % of your income. If most of us did this, in particular if we donate to effective charities -- it would make a difference, but not to our economies. (Many of you may even find
985.
by kqr 2y ago
Chickenpox? Also not to be confused with smallpox...
986.
by kqr 2y ago
It's been about as useful as one would expect. I don't need it daily, but when I need it, I can usually estimate a good enough answer in the time it takes someone else to do it on a calculator. It has also helped a little with get
987.
by kqr 2y ago
> 149,135,151 This is 8-point-something as you say. 1.49 is in between 1.2 and 1.6 and I have memorised log(1.2)=0.1 and log(1.6)=0.2, so I would think log(1.5) is close to 0.17, using sloppy linear interpolation. That would make log(149
988.
by kqr 2y ago
No but it holds more generally. Taking the log of data tends to make it look "more correct" even when it's not theoretically justified, and this can lead to very wrong conclusions.
989.
by kqr 2y ago
I have several slide rules and use them daily. Especially in the kitchen where we deal a lot with scaling proportions they are the best tool available: you set them for the desired scale, and then you can just read off any proportion you
990.
by kqr 2y ago
This is how I've always taught logarithms to students I've tutored. I photocopy a table of various powers of ten, we use it in all sorts of ways to solve problems, and then I sneakily present an "inverse power" problem w

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