retired engineer, former sailor, off grid, gamer, in Puerto Rico. Moderating a little bit.

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Joined 1 year ago
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Cake day: June 10th, 2023

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  • In economic terms, nature is often referred to as an “externality” - meaning, as you say, things which do not appear on corporate balance sheets - that are unvalued. We have collectively recognized that clean water in rivers is something valuable to society, and converted the externality of “use the river to carry away the pollution!” and “use the river water to cool the process plant” into actual costs: not by making investors put their money into riverine systems for future profit, but by requiring permits which restrict what can go into or come out of the river. We can, and sometimes do, manage the land in similar ways. I advocate for it, but of course I get a little anxious about the details if it comes to MY land!

    I spent a couple of years in Guna Yala, the indigenous-peoples’ territory of northeastern Panama. The Guna people live in towns on islands just offshore of the coast, and they farm and hunt in the mainland forest. When a Guna family wants to grow crops, they go with a village chief to the forest area near the village and identify a piece of land that is suitable. The chief approves it and records the location, and the family has it for three years. They can cut trees, plow soil, plant whatever. After three years, they have to abandon it and nobody can use that land for three years.

    I feel very much that my land is not REALLY mine. I have stewardship. The people that had it in the recent past (20th century), did not treat it well and shame on them. But they are dead and gone, so they don’t care I guess. I am treating it better and someone later will probably be glad to acquire it because of the great soil, healthy and perhaps valuable tropical hardwoods, and well-connected ecosystem. I’ll be dead and gone so I won’t care. It is IMMEDIATELY gratifying to live in this place and see it heal and prosper and that is all the return on investment I could ask. But I would at least say they should give me a break on property tax for land I restore to forest (even food forest). Maybe I will donate it to the Nature Conservancy some day, to lock in the gains.




  • The article mentions hydrogen from electrolysis of water, but I think a bigger source in the future could be steam reforming of biomass. That is, when you heat biomass (plant matter, sewage sludge, maybe even municipal garbage) to about 300C in steam, the organic matter breaks down into simple molecules like hydrogen, carbon monoxide (highly flammable!), methanol, elemental carbon (biochar) and miscellaneous others. Some of those molecules can be recovered for important chemical feedstock (since we won’t have petroleum or natural gas as feedstocks anymore, right?), and the gas can be fuel.

    In the early days of natural gas use, towns would “reform” the methane (CH4) by reacting it with steam to make carbon monoxide (CO) and 3 molecules of H2 - a mixture known as “city gas”. It is not new technology.



  • The statistic of low Firefox use is based on accessing US government websites. Could it be that there is significantly LESS government site access by the population of users that prefer Firefox? As a corollary I recently read that game companies observed significantly HIGHER bug reporting from Linux users on Steam, not because there were more Linux-related bugs, but simply because that set of users were more likely to initiate bug reports. Of course Firefox is not Linux and Steam is not the world, but a statistic from a relatively narrow segment of the internet should not be assumed representative of the whole.


  • Have you tried your hand at biochar? I know composting the chips for mulch is high value in a farm operation, but a few tons of biochar can work like a permanent upgrade - improving the soil permanently with one addition - though ongoing permaculture operation continues. I am about to make a biochar cooker out of two steel barrels - inner fuel chamber and outer draft shell. It would probably be more effective with wood scraps than chips though - some air passages through the fuel.

    To test it out for myself, I made a miniature version documented at https://github.com/jcadej/TLUD-biochar-reactor (uses a gallon paint can for the fuel chamber. You could test it small and see how it does with wood chips. When I make my bigger version, I will add it to the github project. My rough idea is to cut one barrel down the side and squeeze it smaller and bolt it so it fits inside the other.




  • These are some good points. The more traditional engineering disciplines have a depth of methods and practices that developed over time, and software engineering is - what? only maybe 50 years old or so? I have not worked with software engineers, but with all other sorts, so I know if there is engineering going on in software development there will be certain methods in place: preliminary designs that senior teams evaluate and compare, interdisciplinary review so the features of design that "work" for one objective also do not detract from others, and quality control - nobody works alone - every calculation and every sentence and every communication is documented, reviewed by someone else, and recorded permanently.

    I can imagine that some software engineering efforts must bring some of these tools to bear, sometimes - but the refrain in software development has long been "we don't have time or funds to do it that way - things are moving too fast, or it is too competitive." Which maybe all that is true, and maybe it can all be fun and games since nobody can get hurt. So if game developers want to call themselves engineers regardless of whether they follow, or even know about standards of their industry (let alone any others'), no harm, no foul, right?

    An old friend of mine wrote the autopilot software for commercial passenger jets - though he retired about 25 years ago. He was undoubtedly engaged in a project that nowadays would be dubbed software engineering. The aerospace company included him in the team with a whole slew of different engineers of all sorts and they did all the sort of engineerish things. But I don't have the impression that much software goes through that kind of scrutiny - even software that demonstrably deeply affects lives and society. In a way this is like criticizing the engineering of an AR-15; what were the engineers thinking to develop something that would kill people?! But it seems like with software, the development has effects that are a complete shock even to the developers: facebook algorithms weren't devised to promote teen suicide, it was just an unforeseen side effect for a while.

    I think it is time for software engineering to be taken seriously. And there is professional licensing. The problem is that corporations are dubbing their staff as software engineers a lot of times, when there is no licensed engineer in the building and there are no engineering systems in place. It is fine for me to say that I engineered the rickety shelves in my garage, because I'm an engineer and therefore it must be so, but that is some sensationally bad logic. They could collapse at any moment - I'm a chemical engineer.



  • I think engineers have been held liable for the soundness and fitness-for-purpose of what they "engineered" since ancient Rome - though they have certainly been called upon to engineer a greater variety of things in the past couple of centuries. And I think if someone proposes to engineer software, I am all for that! We could do with a great deal more of it in fact. And let's dispense with this perpetual disclaimer of warranty for merchantability or fitness for any particular purpose, and such terms. If an engineer designs it and it does not work, the engineer is generally held to be negligent and liable . . . except if they are a software engineer, of course.


  • this seems to reflect the simultaneous co-opting of the titles "architect" (one who designs physical edifices such as buildings) and "engineer" (one who applies math and science principles to problems of infrastructure and industrial production). We all understand what is meant by design, but that does not mean a software design must be devised by an "engineer" or an "architect" anymore than an interior design (though there are also some self-styled "design architects" roaming about). So is it possible to say what is different about software development and software engineering without saying the engineer is an architect? Is it that software developers do not design anything (which in its simplest terms is 'artful arrangement')? That seems arbitrary - though I agree that there can also be a fine line sometimes between, say, architecture and structural engineering.


  • How often in the software industry is the title "engineer" a sop to give applicants a flashy title; and how often is there actual engineering involved? When I worked as an engineer some years ago, it seemed inconceivable that software development would become actual engineering because how could the engineering standards of care and professional liability ever be imposed? Today, virtually all software is either privately licensed or open source - there is no such thing as public software infrastructure under the development supervision of a professional software engineer (as far as I know). So I guess Mozilla can call their software developers anything they like, but it seems to be an ongoing cheapening of the engineering title - like why not call this position Chief of Software Surgery? Lead Software Counselor?