brandmeyer

Indeed. They actually do post a higher-resolution plot of prices over the last few years. The headline is focusing on a single very brief spike in prices that almost immediately reverted to the mean. A more accurate title would have been "Natural gas prices in Europe an Asia return to 2018 levels".

Other way around. Misinformation about climate impacts leads to poor choices. Replacing your electricity with personally-owned solar, upgrading your vehicle to a high-efficiency hybrid or electric, and lowering your HVAC costs on your home are all far more impactful to your CO2 footprint than changing your diet.

There are separate line-items for the industrial process to create urea and the release after application to soil. Both of them are very tiny fractions of the total CO2 budget.

I urge you to read the report. It is quite accessible by the lay reader without resorting on the media to filter it for you.

For example, there are detailed models and measurements for both soil management (significant) and fertilizer (negligible).

Beef is not to blame for this, though. Beef just happens to be the most economical right now. If it wasn't beef, it would be something else. Possibly soybeans since they are the world's largest exporter of them.

I hear this meme all the time, and its absolute garbage.

The entire agriculture sector of the US economy produced 8.6% of US carbon emissions in 2016. About half of that is from fertilizer (soil management). Even if you impute the entire carbon footprint of us ag to beef production, combustion for transport beats it by 3.5x. Combustion for electricity also exceeds it by 3.5x.

Meat is a tiny slice of your CO2 footprint.

https://www.epa.gov/sites/default/files/2018-01/documents/20...

Take a good hard look at the GPS interface specification. The GPS satellites aren't synchronized with each other*. They are synchronized with the ground control segment.

https://www.gps.gov/technical/icwg/IS-GPS-200K.pdf

* recent satellites have limited autonomous navigation capability as a backup.

> if you need to coordinate things down to the millisecond

If this coordination needs to happen > 6 months in the future, then UTC is the wrong time standard to use. Use TAI.

I think you're misunderstanding the proposal. Civil time (UTC) is still known well in the future, just as well as TAI is known well in the future. It is the relationship between them that is unknown.

A handful of items are difficult to get second-hand commercially for either safety or hygiene reasons. But we both bought and sold tons of stuff through local consignment stores.

"generates more plastic trash..." isn't comparable to "properly disposing of plastic".

Rephrased for impact: The dominant source of microplastics is lint.

Fuzzy blanket (synthetic)? Microplastics.

Cozy sweater (synthetic or blend, but lets face it: usually synthetic)? Microplastics.

Microfiber towel? Microplastics.

Plastic straws, bags, and packaging? Landfill.

Depends in part on the cipher suite. For software implementations, the current generation of chacha20-poly1305 and ed25519 are tolerable. But earlier generation ciphers were designed with hardware acceleration in mind.

This tool is relying on libssh2 for its SSH implementation core. chacha20-poly1305 and ed25519 are both extensions and are not included.

It seems that you're right - ISO C doesn't have standard macros for this. That said, since this code is ARM-specific, and you are already leveraging the ACLE header <arm_neon.h>, I think that a negative test for __ARM_BIG_ENDIAN is appropriate.

https://developer.arm.com/documentation/101028/0012/5--Featu...

Some studies are quite skeptical. For example,

https://asi.ucdavis.edu/news/new-study-biochar-helps-yields-...

https://journals.plos.org/plosone/article?id=10.1371/journal...

Some studies even show that biochar soil amendments accelerate the breakdown of humus and release net positive CO2 to the atmosphere:

https://onlinelibrary.wiley.com/doi/full/10.1111/gcbb.12376

The science does not meet the hype.

> Our review shows there are not enough data to draw conclusions about how biochar production and application affect whole-system GHG budgets. Wide-ranging estimates of a key variable, biochar stability in situ, likely result from diverse environmental conditions, feedstocks, and study designs. There are even fewer data about the extent to which biochar stimulates decomposition of soil organic matter or affects non-CO2 GHG emissions. Identifying conditions where biochar amendments yield favorable GHG budgets requires a systematic field research program. Finally, evaluating biochar's suitability as a climate mitigation strategy requires comparing its effects with alternative uses of biomass and considering GHG budgets over both long and short time scales.

From https://journals.plos.org/plosone/article?id=10.1371/journal...

IMO, this shouldn't be a TODO. This should be an #error based on the standard C macros for detecting endianness at compile-time.

TMS570 dual-lockstep automotive safety controllers are hardwired to be big-endian.

Their close cousins the RM57 line look like nearly identical parts that are little-endian. I believe, but cannot prove, that the only difference in silicon is a factory one-time-programmable setting (fuse).

"Why would anyone want to build a BE machine?" In this case, they are trying to gain market-share from big-endian POWER microcontrollers.

ARMv8.2 has rotate-and-xor and xor-and-rotate so that the (extremely cheap) xor can be saved.

At that scale, they may be doing more interesting things, like participating in whatever passes for a spot market, or even time-of-day arbitrage.

There is considerable variation region-to-region, but a common pattern is for the spot market to clear every 15 minutes to provide secondary frequency reserve, with a day-ahead market that clears 24 hours in advance, and a wide range of futures markets that build on the day-ahead market.

Primary frequency reserve kicks in to automatically throttle back dynamic sources. Typical throttle rate is 100% throttle response per 5% frequency deviation. Inertia (both real and virtual) just slows down the system response enough that PFR will be effective. Just about every steam plant, combined-cycle plant, and gas-turbine plant participates in PFR. There have been proposals for inverter-connected systems to participate as well, but I don't know how common it is in practice.

Once upon a time the rated load-step response for a sub-grid in the US was a step-off transient of a nuclear power site going off-line.

Does this meet your needs? https://sqlite.org/zipfile.html

I can see why your experience might lead you to that particular bias. However, that's not where he's coming from. If you've followed his blog over the years, you'll see that he believes you cannot be a decent hardware engineer unless you also have some formal verification chops and use formal methods as part of your design methodology. That's his bias. He expects a practicing HDL engineer to write their own verification proofs.

Glurk! Thanks.

How much does automatic interning of string literals help out here?

Much of the AGESA code for booting the system remains hidden.

I'm just pointing out that the demand for eating out is highly elastic. If the restaurant industry as a whole raises prices relative to background inflation, then overall sales will fall and some will go out of business.

This argument works only if the labor and jobs don't have fungible alternatives. But while in-store retail and dine-in restaurants have been suffering, online-order retail and food delivery have been taking off. Plenty of workers are turning to the gig economy. At least there the apps aren't constantly degrading you, even if they are depreciating your car.

20 GBP for lunch? Even at 10 USD I'll buy lunch only once in two weeks. A 20 USD lunch is a rare treat for special occasions only.

AMD rationalized closed-source driver development as a defense against the release of hardware trade secrets.