zoeysmithe

This is interesting and I googled a bunch of this.

The helicopter base station is an off the shelf snapdragon 801 cpu with 4 cores. By comparision the CPU in the rover is a BAE RAD750 processor at 200hz, essentially a radiation hardened 1998 G3 imac chip. They run calculations on each snapdragon core and if there is a consensus take the value. I don't know how their voting system works. If core 1 and 2 agree and 3 and 4 don't, does it just agree with core 1 and 2's consensus if 3 and 4 don't match? Or does it was 3 minimum and re-runs the calculation.

It also performs aggressive memory scrubbing. This sounds like software ECC by performing various memory checksums by comparing values to the flash drive's files. So if script.sh on disk doesn't match script.sh in memory, they know the memory is bad. I guess they are assuming flash will always be correct, which is interesting, but in space maybe its just a 'pick a lesser evil' thing because flash can also be corrupted by radiation. They store critical files with triple redundancy on the flash, so the flash sounds pretty rugged here. There is also a secondary radiation hardened flash storage 'golden image' the unprotected snapdragon's running flash can be compared to.

Then the software identifies damaged memory addresses and blocks them. One example is the software found 25 corrupted bits in its 1gb memory and has marked them as unusable. I'm guessing over time more and more bits will be unusable as radiation permanently destroys those transistors. So its a bit of a race against the clock. Better to use the base station until it can't be used anymore.

Vitamin D does about a million beneficial things. It is not just about secondary effects of sun exposure. Most D supplementation is done purely via pills and the benefits come without sunlight at all.

I think you may be referring to how D isn't a primary treatment for SAD. It certainly doesn't hurt to get more D in the winter for a lot of other reasons, but SAD is primarily treated via light boxes or anti-depressants.

That being said, vitamin D levels are slowly becoming the new "have you thought about losing some weight" in medicine. Being low on it isn't great, but its not the cause of the health problems people complain about.

I'm so sorry for your loss, but now you have to tell us her high score!

" All traffic is logged."

For $500 he can look in the logs and find all manner of new exploits, or new deviations of the existing ones, he can then sell for thousands. Clever business model lol

These projects would be more interesting and ethical if the current and historical logs were instantly put up somewhere public in real-time for anyone to observe.

Regardless, I'm guessing the smart hackers aren't going to bother.

People look at Athens and Rome as some ideal. Labor there was mostly slaves. I don't think we fully appreciate how burdensome labor is and how that's the main motivation for people to offload it to the working class and make themselves the capital owning class. The American dream is being the boss or independently wealthy investor, not the best math teacher in your town.

Isnt this the human condition and fundamental to our species and everything about us? People in the past weren't fulfilled doing back-breaking farm labor or out hunting all day hoping to catch a meal and knowing if you don't catch a meal a few days in a row you'll be too weak to catch anymore.

Ignoring art with patrons which is a tiny percent of all art made, people just did things at home quietly. They painted, drew, told stories, knit, crocheted, etc. Even patron-led artists just made what their patrons wanted, namely all the famous religious art, which I imagine felt like unfulfilling work anyway.

What we like, that is to say gets things like our dopamine flowing, tends to tie in well with the idea of not being compelled to do it. Someone writing copy at work to further enrich the capital owning class and to pay their bills is very different than someone writing short stories in the evening after work.

Removing the rent-seeking middle-man class generally brings in savings. Same with healthcare.

Also the "refs" should be in charge. That is to say the working class are the refs and they should be able to build infrastructure without the capital owning class inserting itself as a rent-seeker between them and these services.

Its naive to think that removing the rent-seeking middle-man class won't lead to savings. Same with private healthcare costs vs more socialized or single-payer systems.

Generally that's not true. Its weird people feel like they must mention any exception. Its the same as "I know someone who lived to their 90s and smoked everyday, so what's wrong with smoking?" People are aware exceptions exist and it doesn't really add anything to conversation to keep bringing them up.

In the end, how were you able to monetize Docker?

This ignores how food today isn't much like food of the past. It has all manner of added sugars and things to make it more marketable, hence higher profits, but also causes over-eating. Snack culture is pretty much an attempt to make food as addictive as possible, and many of those methods are in 'regular' food too.

Not everyone knows this and many who do can't afford an expensive farm to table whole foods diet.

Now toss in car culture and the suburban model and a culture very strongly against any sort of socialized commons like public trans and the little exercise they otherwise would get isn't available anymore. I live in a walkable neighborhood and take public trans, I know my health would be much worse if I didn't get all those steps, fresh air, sense of community, etc in everyday.

Pretty much everything Americans do is wrong when it comes to food, diet, walkable communities, and transportation. What we need to fix this is not putting everyone on ozempic, but a frank look at how our society is organized and figuring out ways to move to a saner society.

php RCE's are a big deal. So much of public facing stuff is drupal or wordpress and heaven knows all the places php is being used. Think embedded systems and appliances and in turn-key software.

I don't know why php is impossible to harden, but its a security minefield, and if there is an RCE then its trivial to attack because so many of these systems are public facing. I veto any php based applications just over this.

This is just like linux and the larger open source movement. It liberates closed source code that should be open. In the future we will look back at this like we do the start of linux.

Treating AI like microsoft office subscriptions is really the losing model, at least in the long run.

I think there's this cultural bias about the 'boy genius open source coder' that of course isn't true at all. Open source code is at the same quality as corporate written closed source code, in general. There have been studies on this and open vs closed source code isn't very different in terms of defects and exploits.

The problem is the people most willing to buy into this cargo cult mentality are techies, so tech forums are the last place to really have this conversation based on facts. Hence why your comment is barely visible here due to its low karma.

I feel like this is the elephant in the room. People keep acting surprised these large codebases are full of bugs and exploits. C isn't a safe language and moving to safe languages is going to be the only lasting solution.