Most software is a terrible pile of unreadable code with no tests and horrible architecture choices, that somehow manages to keep working just through the power of years of customers finding bugs and complaining loud enough to get them fixed.

If you write any automated tests at all, you’re already better than most “professional” software companies. If you have a CI/CD pipeline, you’re far ahead.

The cost of digital advertising cannot be justified by its effectiveness (or rather lack there of). We’ve collectively spent hundreds of billions of dollars creating the infrastructure for invasive hyper targeted ads that do not get better results than simple billboards and terrestrial TV ads even now. We’ve created a global economy of marketing, media, advertising and sales solely reliant on technofeudalist overlords who’ve provided very little actual improvement of anything.

A whole bunch of welds in nuclear reactors are visually inspected using cameras duct taped onto the end of incredibly long poles which also get duct taped together. This would be the inside of BWR plants near the fuel and jet pumps. There is also an “art” to moving the cameras and poles around to get the shots you need. And if you get stuck the talented people know how to get you unstuck. There are also cameras just duct taped to ropes that the camera handler “swims” to certain spots.

Don’t get me wrong, we have cool ultrasonic inspecting robots as well, but I was absolutely blown away by what visual inspection looked like in practice.

PS: The high dose fields make the camera look like it is being blasted with colorful confetti because of the high energy particles bombarding the camera module.

These aren’t secrets, but may not be well known (unless you watch LPL):

Sentry Safes aren’t safes, they are fire boxes with a fancy lock.

High security locks are not high security because of the lock design, but because the keys are very difficult to have duplicated.

No one (except maybe intelligence agencies) breaks in to a house by picking a lock, especially in the US. Windows, weak door frames, and, in a pinch, making a hole in the wall are all faster ways of getting in.

Car keys are so expensive because many manufacturers charge a subscription or per-use fee to access and program the keys to the ignition. These costs are passed on to consumers

No one is picking your locks just to move things around or steal small, insignificant items. You are either suffering from a mental disorder or a trusted member of the household is gaslighting you (it’s not gaslighting though, you’re your grasp of reality is slipping. Don’t call me for a pick proof lock, just get help please)

Some manufacturers (you know, in China) will put any sticker you want on the products they produce, including UL and ANSI stickers. Before buying a product that is supposedly fire-rated, such as a fire safe, check the UL website to verify the item is actually listed with them.

“Grade 1” door hardware sold in stores like Lowe’s or Home Depot is, at best, Grade 2, and is likely Grade 3 (residential grade). These grades are really just about how durable the product is over time, and how much abuse they will endure by the public.

And just a little practical advice. Find a qualified, honest locksmith before you need one. We’re like plumbers. If you wait until you have an emergency to find one, the quality will be questionable. There are a lot of scammers out there. If you don’t have a resource for locksmiths beyond Google, look on the ALOA website for members in your area. The good ones will know who the other good ones are, and won’t be shy about sharing that info if they are unavailable or too far away

Chefs can put as much butter, cream, salt, sugar and fat as they like into restaurant meals. That’s why they tastes so good.

Fractional-reserve banking. Most people have no idea what it is, probably a good thing. You could argue that it’s not a “secret”, but most people aren’t aware of it regardless. I don’t think most people would be fond of grinding for $15 an hour if they knew banks could just lend money they don’t actually have. https://en.wikipedia.org/wiki/Fractional-reserve_banking

The use of chatgpt for writing is so widespread in higher ed, it will cause serious problems to those students when entering the workforce.

Lots of fancy stuff is written about how we just have to change the way we teach!, and how we can use chatgpt in lessons! blablabla, but it’s all ignorant of the fact that some things need to be learnt by doing them, and students can’t understand how they hurt their own learning, because they don’t know what they don’t know.

In the UK, slot machines fall into 4 main categories. Of particular interest are category C machines, as these can remember a fixed number of previous games. I.e. the “myth” that a machine is “about to pay out” because “someone lost a lot to it” can hold for these games.

Cat A and B machines are completely random, previous games can have no impact on probabilities of winning (though pots can climb).

Online games have different rules, not always fair ones!

Oh, and ALL games (in a physical location) must (by law) show “RTP” (return to player) somewhere. It usually gets stuck it in a block of text in the manual since no-one reads them. (If it’s below 97.3% just go play roulette as it offers better returns).

Dog groomers get almost zero legal repercussions for mistreating dogs. It has to be undeniable that the groomer injured the dog on purpose before anything really happens. That’s why it’s SO important to trust the person grooming your dog if they’re the type of breed that needs it.

the oh so well kept secret of the software and services (surrounding it) industry that people seem to think is worth paying money for.

Yet time after time these paid software companies produce the most vile awful, dysfunctional, and garbage software (and services) that have ever been created. While somehow a group of people who aren’t being paid, and aren’t doing this for any sort of reason other than “why not” manage to create the most functional software ever, while also managing to somehow catch the single biggest potential software vulnerability in this decade (other than wannacry) purely because ssh has slightly sus behaviors when running the infected payload.

Please stop doing web dev, it isn’t real.

Emergency Medical Service/Ambulances are a ridiculously low qualified in a fair shair of industrial nations, especially the US,France, or Austria.

Even in the countries with more training/physician based services (Germany, Belgium, Italy)the actual qualification of the responders varies widely - most of them wouldn’t be allowed to care for a single emergency within a hospital on their own.

If you value your privacy and you have a choice between using a browser to access a service vs installing their app, use the browser.

Online services can get much more information about you through an app vs the browser. Browsers are generally locked down more. Apps in general have access to much more information from your device.

The world is littered with fake empty buildings used to obscure phone line junctions and internet provider stuff.

Almost every neighbourhood has one. But they look like normal houses, so you can never tell unless you know where to look for.

We knew spooks were all up in the phone network. They’d show up and ask installers to run them some cables and configure ports in a certain way. I was friends with folks who were friends with the installers.

The majority of technologies that power the internet were developed in the 80s and refined in the 90s. Everything since then is built as a layer of abstraction on top of those core technologies.