Big new article up! I think this one is important and would be good for people to study.
Since it has a bunch of sections, I added a new table of contents feature to the site for better navigation.
I am reading through it now. A quick thing I thought worth mentioning:
The first mathjax bit (3acres + 8hours + 5grams) is treating the units like a bunch of algebraic terms.
With mathjax (and latex) you can put text in maths bits using \text{...} and add spaces using \; (maybe \: too). The default is to mush everything together: 3 acres vs 3 \; \text{acres} â $3 acres$ vs $3 \; \text{acres}$.
This is particularly useful for subscripts and stuff without using the default italics, e.g., i^\text{th}, \text{SizeOf}(\text{Post}_{123xy}).
You can add spaces with "\ " (slash then space). I did it sometimes but didnât want spaces in this case.
Iâm not really sure the best way to handle math. mathjax is important for some stuff like fractions, exponents and roots, but it messes up copy/paste. i tried using it less but i found the regular font makes numbers too short compared to letters â in particular the 1 and 0 looked bad. possibly i could change the overall article font (dunno what it is â just the Casper default that some actual designer chose â and also with controlling fonts you have to worry about not all fonts being available on all platforms). I have a bunch of stuff in mathjax but not all cuz there are so many tiny mentions of numbers and variables inline.
I thought the italics acres thing looked ok enough but i donât have a strong opinion on that or clear overall policy.
i expect to have little to no math in most articles so maybe this is good enough.
FYI for me: I canât copy paste the mathjax from the cf site, but can here:
From OP link:
because theyâre equal) in to get . In other words, given that one x
From above:
e.g., ith , SizeOf(Post123xy) .
I agree that breaking copy-paste is a big downside (at least there is the right click menu; better than nothing).
This isnât ideal, but if you want the math bits to be visually distinct (and can do css stuff + wrap equations in span/em) - you could just use the latex/mathjax font (new computer modern - free/libre) for those bits. That might fix some of the copy-paste issues. I canât see fractions being copy-pastable except via (numer)/(denom) type thing.
I have occasionally looked into ways to copy-paste something different to what the user sees (e.g., including markdown markup, copying \TeX instead of the sometimes weird rendered bits). So far the only option seems to be doing some fiddly JS stuff.
FWIW Iâve found adding fonts via CSS to be v reliable (like, itâs safe to style a website with custom fonts if theyâre linked and going to stay available).
Browser dependent I guess. I canât c/p your example here well. I get:
i
th
,
SizeOf
(
Post
123
x
y
)
Re converting chess dimensions: from what I gather, chess-playing programs might convert to a score while searching in the middle of the game, but they check decisive factors, too. Sort of like a checkmate is worth +\infty (or -\infty) so it always dominates (mb they emulate this by scoring it as \frac{10000000}{\text{MovesAway}} so that checkmating sooner is preferred). Mb worth mentioning? I ctrl+fâd for âchessâ and it didnât seem like it appears in the CFâs Solution section.
What do people do about that? They multiply by weighting factors that get results they think are reasonable. But that isnât actually a way of making decisions. Theyâre using their intuition, common sense or something else. That is how the decision is actually being made and that pre-existing conclusion is biasing their decision making process.
Iâm not sure about âBut that isnât actually a way of making decisions.â
I think that the big quote is making these points:
(note: these are not in the same order as the quote, also the list isnât meant to be exclusive)
- thereâs a common decision making process
- which is based on pplâs intuition / common sense
- that method is implicit is is what they actually use (and also biases the process)
- a similar explicit method is to pick weighting factors that makes seemingly-sensible answers come out
- the explicit method is basically what the common method is doing, but people donât actually use the explicit method (they use the implicit one)
âBut that isnât actually a way of making decisions.â is literally saying that the subject (that: the explicit method) isnât a decision making method. But I think itâs intention is to say: the explicit method isnât what is actually done by ppl most of the time. Iâm not sure tho â like I think that explicit-weighting-factors is a method (well, once you add a way to like rank or pick a winner). Isnât Analytic hierarchy process an example of that?
I think grammar and text analysis trees would locally help you here, however I doubt this passage is a constraint. You didnât say goals or relate these comments to goals though so itâs hard to know. But Iâm guessing you should focus on trying to understand the major themes of the post.
Yeah, I donât think itâs a constraint either.
The goal was to figure out if I was reading âBut that isnât actually a way of making decisions.â correctly[1]. Iâll do a tree and mb post to grammar questions.
-
Iâm not sure that i know how to pick precise-enough goals. âŠď¸
What? Why?
The issue isnât goal precision. Itâs connecting local goals to the bigger picture.
Your post was written more like a correction than a question.
That wasnât the goal I would have guessed from your post at all.
You started with:
I read that as you saying you thought Elliot was maybe wrong, not as you saying you werenât sure if you were reading/understanding the article correctly.
This is also written like a correction. You arenât asking for help or saying you are having trouble understanding something. You seem to be trying to correct Elliot and tell him that he didnât make his point properly, he used the wrong words for what he meant.
Yeah, youâre right. Thereâs something going on there but I have some pre-existing commitments now. I will come back to this.
Notes/comments on âAveraging Factorsâ section:
Summary: Averaging doesnât help because we canât simplify and combine the terms, so it has the same issues as addition.
With median, youâd get the value for a single dimension. âAnd youâd need to be able to rank all the factors from different dimensions, in a single ranking, in order to find the median.â
(My thought) Iâm not sure I quite follow this point. Itâs unclear if Elliot is saying you just need to be able to say e.g. z > x > y or if heâs saying you need to be able to put the whole term (e.g. 5z) in a single ranking in order to find the median. I would think it is the latter, since even if you know 1z is greater than 1y, that doesnât tell you if 5z is greater than 8y. Youâd need more data about the relationship there to rank them for certain.
Elliot says (in a statement that covers both median and mode) â[b]oth of those would get a result in a single dimension rather than combining factors from different dimensions.â I guess you could just look at the coefficients to figure out the most frequent value. But then sometimes there might be no mode (if all numbers are different). And if you had say 2x, 2y, 3z, how does saying the mode is 2 help? And in that case itâs actually referring to two dimensions and youâre dropping the zâŚanyways I found this part a bit confusing.
You donât look at just coefficients for mode. Mode means:
Statistics the value that occurs most frequently in a given set of data.
Consider this data: 2x, 2x, y, 2y, 3y, 4y, 5y, 5z, 5x, 5w.
The mode is 2x because itâs the one thing that there are 2 of.
ah okay that makes sense, thanks.
I liked this point/example and thought it was especially clear (emphasis added):
Conversions work in both directions (if you can convert miles to feet, you can also convert feet to miles). Suppose you can convert both friendliness and cuteness to goodness. That means you can convert from cuteness to goodness and then convert that from goodness to friendliness. This implies a conversion from cuteness to friendliness.
In other words, suppose you come up with these two conversions (f is friendliness, c is cuteness, and g is goodness):
f = 4g
c = 2g
Mathematically, that implies (using substitution):
f = 2c
If you canât accurately compare friendliness and cuteness directly, you also canât convert them both to the same type of goodness.
In the section âConverting Dimensions to Goodnessâ, Elliot talks about how you can rank some stuff - like the cuteness of a pet. And then you can come up with approximate scores that reflect both the rankings and also the distance between the rankings. This is fine if you keep in mind that itâs an approximation. Quote:
We canât measure cuteness of a pet either, but we can rank it. Which pet do we think is the cutest, second cutest, etc., in our opinion? And we can assign the pets numerics cuteness scores which are compatible with the rankings (highest ranked pet has the highest score, second highest ranked pet has the second highest score, etc.). We can also make cuteness scores approximate our opinion of how different the pets are. E.g. if the best two pets are similarly cute, and the third pet is much less cute, we might score them 85, 80 and 40. Those scores fine as long as we know they arenât real measurements like inches. The cuteness scores just mean two things: the rank ordering we assigned the pets and a rough approximation of how close or far apart the pets are on cuteness.
My comment: Yeah or like if you think of the tastiness of foods and you say âpizza>>>>cheeseburgers>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>boiled cabbageâ, thatâs fine as a ranking and also as an approximate statement of your opinion about boiled cabbage tastiness relative to the other two foods, but if you started to try to treat each â>â as like a precise thing corresponding to something in reality in the same way an inch does, youâd get in trouble.
Yeah. One workaround I use for copy/pasting mixed text/math is this (basically TextSniper with math support):
It has a limited number of free uses per month tho, and is like, an extra tool to worry about that you need to install instead of just being able to copy/paste normally