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this post was submitted on 03 Sep 2024
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So basically you’re saying one of the best things you can do for yourself as a dev is be young.
It’s a well-documented fact that as people get older their fluid intelligence declines.
If you predicate your tech culture on requiring high fluid intelligence, you (a) make less readable code since the people writing it have more working memory and can hold more lines in their mind at a time and (b) break long-term institutional memory resulting in the reoccurrence of solved problems.
At the level of organizational architecture, a culture of emphasizing fluid intelligence as the strategy for attacking problems and adaptation causes serious losses of efficiency, and hence fluidity at a higher scale.
Ensuring compatibility with greybeards’ brains is key to long term success, and that means respecting an upper boundary on the rate of tools change.
I'm quickly approaching grey beard status. I recognize that I'm nowhere near as fluid as I was 20 years ago but I make an effort. You have to continually practice fluidity and actively learn things lest you solidify and lose that skill like any other. It's important to stay fluid because things change and change faster than we all expect.
There's some truth to that. PHP is still in use and Wordpress is still somehow a behemoth. But the fact is that PHP has fallen out of favor, isn't used by new projects, and there's less demand for people with that skillset. So as a dev, it's important to recognize that tools come and go and be flexible.
This example doesn't work as well with C/++ since that's older than most people here (though the language has also gone through iterations) and likely won't be going away any time soon. But still, in most cases you probably don't want to use that language for general work. So you'll probably have to pick up other things for your toolchain (and higher level) work which of course has changed a lot.
The good news is though, that it's relatively easy to transfer core skills between most languages. Especially the ones with C-like syntax, which is most languages.
I’m all for keeping one’s cognitive skills. However it is a fact that this decline happens, and that there is a phase of life where one has wisdom without necessarily having the same raw intelligence they had before. The wisdom is encoded in crystallized intelligence.
By wisdom here I mean “The tendency to make decisions that turn out well”.
My father was an equipment operator well into his 70s. After he retired they kept bringing him back to train the younger guys, and to get things don’t they couldn’t get done.
That was possible because those machines don’t change too much as time marches on. Because they use a stable platform, his organization was able to do better work by relying on his deep expertise. He could train those younger guys because it was the same platform he’d always used. Same dirt, same physics, mostly the same machines, same techniques, same pitfalls, etc.
His fluid intelligence is almost zero. The man’s practically an ASIC at this point, yet he’s fascinating to talk to and competent in the world. Fluid intelligence is not the only way to get things done.
We of course play plenty of video games together to keep him sharp. We also eat mushrooms, paper when necessary, and he works out a lot. We do all we can, believe me.
Also while I’m driving, my Uber app locks up. Siri talks to me in a halting, broken voice, and responds with “something went wrong”. Google Maps shows a brief flash of my home before flipping to my current location. Then back to home again, then back to my current location. Spotify doesn’t remember what song I was listening to. Amazon Prime Video can’t remember what episode I was last watching.
Enshittification is everywhere. Our tech is buggy as fuck and solved problems in project management and devops are recurring. It’s not just about focusing on advertisers’ needs over customers. It’s also about wanting to kick out the greybeards as part of our great cultural revolution. It’s about driving trains into tunnels without adequate ventilation because fuck the previous generation thinking they know better than me.
It is the case that new technologies are introduced all the time, but that’s not necessarily right.
Why not? Because you won’t be able to hire younger devs? That is a function of this culture of pushing for change in everything. Younger people don’t learn C++ because it’s a little harder to read and because culturally we don’t respect established things. I’m sure there’s a word I don’t know here, but we generally have a culture of hating the past.
I agree. Design patterns, work patterns, these transcend languages. And they’re 99% of the success or failure of a project.
And yet here we are emphasizing how C++ and Rust can’t realistically coexist in a serious project, because there’s some mismatch in their capabilities. I point to the current conundrum as the counter to this idea of transferability. The devil’s in the details and if the wisdom transfers between languages so well then we don’t need new languages.
Fundamentally, the question is “What are these news things that need to be done by code, that weren’t being done by code 30 years ago, such that it necessitates new languages?”
It’s cool to be able to tell your college buddies you’re building a new programming language.
In fact, it’s great that people are making new languages as a way of keeping language design wisdom alive. It’s great that CS kids build logic circuits from scratch for the same reason.
But then again, Netflix can’t remember what episode I was watching, when I’m almost certain they had that ability a few years ago.
Netflix is using FreeBSD for servers. You can't blame everything they do wrong as being a problem with the new hires. They are using an OS older than Linux that changes more slowly than Linux, simply because it performs the best for their specific application. Rate of change isn't the issue here.
In fact that's 90% of what this comment is. Blaming new people and new techniques for problems when you aren't a part of that organisation and don't actually know what's happening.
Working with computers is not the same as working with construction equipment. Some degree of fluid intelligence is needed in this field, no matter how experienced you might be, just like how a surgeon needs steady hands. The people you call greybeards aren't nearly as old as your father is. We are talking about people who are in their 50s and 40s. They don't have that level of cognitive decline yet. Likewise some things like ext4 aren't likely going to be ported to Rust now or even ever. They can keep maintaining them as they are now for the foreseeable future. Plus I don't want people to have to keep working into their 70s and 80s. At some point it becomes elder abuse. Let people retire man.
C has existed for a long time now. We've been trying to replace it for ages, for most of it's lifespan even. C++ actually was one of the new options at one point. I get it seemed immovable only a decade ago, and I think that has lulled people into a false sense of security. In truth it was inevitable it would have to be replaced one day. It's already well outlived the life expectancy of a programming language. Just think about Ruby: created long after C yet has already become mostly irrelevant. You talk about the maximum rate of tool change, but C is one of the oldest tools we have, keeping it around would be almost 0 rate of tool change over decades. If you can't see that C is very slowly dying then you haven't seen the writing on the wall for the past several years. It's on you at that point.
We should look back with pride at everything that has been accomplished with C, and just how long it's been relevant. We can do this while still acknowledging it needs to be phased out gradually.
No one is asking for change that rapid either. Linux started adopting Rust four years ago now. It's probably still going to have C code inside it for at least a decade from now. This isn't some quick change, it's a gradual process. People have plenty of time to adapt, and those who are too old to do so will be around retirement agent if not already dead by the time C is fully phased out.
Honestly you take more care of yourself and your father than I do. I am only in my 20s and suck at video games. If I took mushies or LSD I would probably lose my mind, assuming it's all still there in the first place. I suspect there is a good reason why people like me only have a life expectancy of 58 or so.