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nicknow commented on The sisters “paradox” – counter-intuitive probability   blog.engora.com/2025/08/t... · Posted by u/Vermin2000
nicknow · 2 days ago
Why do we treat boy-girl and girl-boy as different outcomes since they are, per the question, equal outcomes thus representing one possible outcome.

We don't care about which came first or second, only what gender each child is.

Thus the answer, to the question given the information you have, is 50%. The only possible outcomes are girl-girl or girl-boy (where order is irrelevant.)

And this is absolutely NOT the Monty Hall Problem. I don't know why some people are making that reference. The Monty Hall Problem contains three possible choices and one is eliminated by the host, this is what makes the statistical math interesting in that problem. None of that is happening here.

Lets look a the exact wording of the question:

> a family has two children. You're told that at least one of them is a girl. What's the > probability both are girls?

We have a family with two children. Assume we don't know their gender. We'll represent them as XX.

We are told one of them is a female. So now they are represented as GX (remember GX = XG, since order doesn't matter.)

You are left with the question what is the probability that X is female? Well there are only two choices, F and M, and we are told elsewhere that the probability of having a girl is 50/50.

> Assume that the probability of having a girl or boy is 50% and that the birth order has > no effect on the probability.

So the chance of X being female is 50%. Thus the answer is 50%.

You can't say birth order doesn't matter and then use birth order to say the FM and MF are different results. The only possible results are FM and FF (since birth order is irrelevant.)

nicknow commented on Things that helped me get out of the AI 10x engineer imposter syndrome   colton.dev/blog/curing-yo... · Posted by u/coltonv
simonw · a month ago
I found myself agreeing with quite a lot of this article.

I'm a pretty huge proponent for AI-assisted development, but I've never found those 10x claims convincing. I've estimated that LLMs make me 2-5x more productive on the parts of my job which involve typing code into a computer, which is itself a small portion of that I do as a software engineer.

That's not too far from this article's assumptions. From the article:

> I wouldn't be surprised to learn AI helps many engineers do certain tasks 20-50% faster, but the nature of software bottlenecks mean this doesn't translate to a 20% productivity increase and certainly not a 10x increase.

I think that's an under-estimation - I suspect engineers that really know how to use this stuff effectively will get more than a 0.2x increase - but I do think all of the other stuff involved in building software makes the 10x thing unrealistic in most cases.

nicknow · a month ago
Completely agree.

What will happen is over time this will become the new baseline for developing software.

It will mean we can deliver software faster. Maybe more so than other advances, but it won't fundamentally change the fact that software takes real effort and that effort will not go away, since that effort is much more than just coding this or that function.

I could create a huge list of things that have made developing and deploying quality software easier: linters, static type checkers, code formatters, hot reload, intelligent code completion, distributed version control (i.e., Git), unit testing frameworks, inference schema tools, code from schema, etc. I'm sure others can add dozens of items to that list. And yet there seems to be an unending amount of software to be built, limited only by the people available to build it and an organizations funding to hire those people.

In my personal work, I've found AI-assisted development to make me faster (not sure I have a good estimate for how much faster.) What I've also found is that it makes it much easier to tackle novel problems within an existing solution base. And I believe this is likely to be a big part of the dev productivity gain.

Just an example, lets say we want to use the strangler pattern as part of our modernization approach for a legacy enterprise app that has seen better days. Unless you have some senior devs who are both experienced with that pattern AND experienced with your code base, it can take a lot of trial and error to figure out how to make it work. (As you said, most of our work isn't actually typing code.)

This is where an AI/LLM tool can go to work on understanding the code base and understanding the pattern to create a reference implementation approach and tests. That can save a team of devs many weeks of trial & error (and stress) not to mention guidance on where they will run into roadblocks deep into the code base.

And, in my opinion, this is where a huge portion of the AI-assisted dev savings will come from - not so much writing the code (although that's helpful) but helping devs get to the details of a solution much faster.

It's that googling has always gotten us to generic references and AI gets us those references fit for our solution.

nicknow commented on Most people don't care about quality   shkspr.mobi/blog/2024/12/... · Posted by u/ColinWright
crote · 8 months ago
It does make me wonder why we aren't really seeing "guaranteed quality" brands pop up. There's an increasingly large market of consumers who are tired of getting screwed over by literally every single product they buy. Surely there must be a way to run a viable business which is 10-20% more expensive than its competition, but which isn't complete crap and willing to back that up with things like extended warranty?
nicknow · 8 months ago
Isn't this what Anker has largely done. In a world of might be good/might be crap cables, chargers, batteries, etc. You can always select the Anker variety on Amazon. It'll cost you a bit more than whatever random product, but you know they are reliable. It's priced much cheaper than an OEM (Apple, Google, Samsung, etc.) accessory but is more reliable (quality wise) than no-name accessories.
nicknow commented on Albertsons kills rural grocers with land use restrictions   thebignewsletter.com/p/ho... · Posted by u/unpredict
anigbrowl · 10 months ago
My point is that such contractual terms should not be enforceable given their anticompetitive impetus.
nicknow · 10 months ago
We need to be careful here. Because we still want people to sell off potentially productive land. Lets say I buy two lots along a highway with growing traffic because I believe in the next 5-10 years it will be a good spot for a gas station/convenience store.

So now 5 years later the highway is developing and I build out my location. I decide I want to sell the other lot since I'm not going to build on it.

Now, I don't need to sell it. I could hold on to it, it's not that expensive to own. It would be a great spot for a fast food joint or what not. But I don't want to sell it to someone who immediately develops it as a gas station.

The public would benefit from developing the land - new services and more tax revenue. So it's in the public's interest for the owner to sell.

So you want to allow some amount of anti-competitive restrictions. I get not wanting permanent non-removable restriction.

nicknow commented on Albertsons kills rural grocers with land use restrictions   thebignewsletter.com/p/ho... · Posted by u/unpredict
JumpCrisscross · 10 months ago
> I.e. easements that come from law rather than seller stipulation?

A lot of convservation land in America is put under non-governmental easement [1]. The owner puts a restriction on the deed prohibiting development. They typically require emininet domain powers to be removed.

[1] https://en.wikipedia.org/wiki/Conservation_easement

nicknow · 10 months ago
We can probably define a legal conservation easement as one that prevents further development on a piece of land, as opposed to regulating the uses and types of development.
nicknow commented on Albertsons kills rural grocers with land use restrictions   thebignewsletter.com/p/ho... · Posted by u/unpredict
TulliusCicero · 10 months ago
These sorts of land use restrictions should be illegal. It's basically a corporation trying to act as a pseudogovernment, enforcing regulations on land that they no longer own themselves.

One could argue that HOAs are kind of a similar issue, acting like a pseudogovernment, with restrictions on housing passing on down indefinitely, even to new owners who may not have wanted to agree to them (but with housing being as constrained as it is, you may not always have a realistic choice).

As a general rule, prior owners probably shouldn't be getting a say in what future owners do with land. Why? Because land is inherently limited in a way in which most other property is not, which reduces the ability of new entrants to 'disrupt' the market by offering people more choice.

If my town only has one car dealership with shitty business practices, no biggie, it's not too hard to go to another town and buy a car, then bring it back. But I can't buy land and bring it back to use it, I'm stuck with whatever's already there.

nicknow · 10 months ago
There is a difference with an HOA. The HOA can be removed if enough members agree. It's not a restriction added by a past owner that can't be removed by the current owner.
nicknow commented on Care Doesn't Scale   stevenscrawls.com/care-do... · Posted by u/surprisetalk
MisterBastahrd · 10 months ago
The 3am baker currently exists because the people who benefit the most from the exploitation of labor have the extra money to buy artisan products. My great grandfather had a bakery. He and my great grandmother would bake their product and my grandfather and his brothers would deliver the product to local businesses and homes.

And then corporate breadmakers came in and made it impossible to compete from a price standpoint. Quality disappeared, and variety was subsequently crushed. The only people keeping his businesses open for a while were those who had fortunes that existed from owning a ton of land. They still wanted their oval loaves and fresh french bread and muffins.

nicknow · 10 months ago
Essentially most consumers just didn't care about quality and preferred the lower price over the higher quality product. That seems like normal consumer choice. The people didn't get poorer all of a sudden when the corporate breadmakers came along - the people simply decided they would prefer to get an inferior product at a lower price.

The reality is most people don't want to spend more money for higher quality goods. Or, if they do, it's on a limited set of goods based on personal preference.

nicknow commented on Care Doesn't Scale   stevenscrawls.com/care-do... · Posted by u/surprisetalk
KittenInABox · 10 months ago
Children notoriously prefer consistent meals over diverse ones, home cooked or not. The issue with serving blueberries for example is that each blueberry is different. My mother home-cooked for me a boiled egg and rice porridge every morning, and it was that consistency that associated me with care.
nicknow · 10 months ago
Yes. And child psychologists will tell you that babies and children crave consistency, variety is not their thing. In fact, one of the reasons we as parents (adults) expose them to variety is so they develop an understanding of how to cope with inconsistencies. And it's always a careful balance, small amount of variety but mostly consistency.

And I can tell you most little kids love hard boiled eggs which I suspect is because they are incredibly consistent in texture and taste, unspoiled by some cook seasoning them or cooking them differently.

nicknow commented on I built an online PDF management platform using open-source software   pdfequips.com/... · Posted by u/sanusihassan
nicknow · a year ago
If this is entirely build using open-source software why not open source the site itself? Especially if you aren't planning to turn it into a commercial service.
nicknow commented on Launch HN: DryMerge (YC W24) – Automate Workflows with Plain English    · Posted by u/samuelbrashears
nicknow · a year ago
Really great concept and execution seems to be pretty good. I'm a likely paying customer except that you don't support Microsoft 365. So I can use it for all my personal stuff which is GMail but none of my businesses which all run their email through Microsoft 365.

u/nicknow

KarmaCake day67March 28, 2022View Original