jandrewrogers

5 ms·

31.
by jandrewrogers 2mo ago
It isn't just emergency generators. Many non-emergency generators are used because there is no grid to connect to and/or the power requirements are not anticipated to be permanent. The cost of a grid connection can greatly exceed
32.
by jandrewrogers 2mo ago
This kind of encoding[0] is ubiquitous in networking protocols. It scales down to small silicon well and enables the receiver to estimate resource requirements or skip parts of a serial byte stream without storing it in memory first. These
33.
by jandrewrogers 2mo ago
> Only about 37% of adults hold stocks, bonds, or funds outside of a retirement account. That's surprisingly high. I know several people with millions in their retirement accounts and nothing outside. It is also not uncommon for peo
34.
by jandrewrogers 2mo ago
An important point is that "capital" is essentially just another way of saying "investment". Investment is what creates opportunities and demand for labor. Strong demand for labor increases wages e.g. construction wages
35.
by jandrewrogers 2mo ago
> there are plenty of DCs in hot and arid regions Differences in air temperature are largely below the noise floor in terms of impact on data center cost. Slightly lower energy prices and other operational or capital costs are more than
36.
by jandrewrogers 2mo ago
Now do the amount of water required for subsidized corn ethanol. 30 million acres, trillions of gallons of water, and almost no redeeming value.
37.
by jandrewrogers 2mo ago
Poor people absolutely are wasting money but it doesn’t matter. I did it, everyone does it. The “wasting money” argument is hyper-analytical and not a productive accounting of human behavior. Almost no one in the US is literally negative on
38.
by jandrewrogers 2mo ago
> You saw it, huh? I lived it in many locales and cultures for a large fraction of my life. Anecdotal but very good anecdotes.
39.
by jandrewrogers 2mo ago
If the parents have poor impulse control then the children often do as well. This is a selection effect; children growing up in poverty often inherit a significant contributor to their parents' persistent poverty. People who are incide
40.
by jandrewrogers 2mo ago
Persistent poverty is usually a byproduct of poor impulse control. That will quickly undo any compounding created by hard work. No other factor comes close to being as predictive of whether or not someone in the US gets out of poverty as im
41.
by jandrewrogers 2mo ago
I don't see them as separate issues. Emitting them directly runs into the inherently poor memory locality (and potentially concurrency) of trying to produce logs, metrics, and traces from the same underlying event data representation.
42.
by jandrewrogers 2mo ago
"free". The observability system would greatly exceed the workload being observed in many cases.
43.
by jandrewrogers 2mo ago
OpenTelemetry reminds me a lot of the bad old days when Java/XML maximalism was fashionable.
44.
by jandrewrogers 2mo ago
This is the literally the "everything is a graph" argument from database architecture. The conceptual abstraction fails badly because it has to be implemented on real silicon that imposes constraints not considered in the abstract
45.
by jandrewrogers 2mo ago
> Unlike C++, which allows implicit memory allocations and complex copy constructors It is trivial to ensure this doesn't happen at compile-time. If you are doing DMA as in the article these guarantees are required.
46.
by jandrewrogers 2mo ago
I've long used similar static allocation models in analytical database kernels. These are even more susceptible to widely varying demands on memory. There are few practical limitations or caveats to this allocation model and it has str
47.
by jandrewrogers 2mo ago
The US IC TLAs have a long history of supporting US companies that have interesting (to them) capabilities that may be too early for the public market. To their credit they often have some foresight in this regard. A lot of their support wa
48.
by jandrewrogers 2mo ago
> A large majority of basic scientific research is funded by tax dollars. Used to be. The US government only funds 40% of basic scientific research now. This is due to large increases investment from private industry, which now rivals th
49.
by jandrewrogers 2mo ago
There is a genetic component to disinterest in sweet food. It quite evidently runs in some families. These are people who never eat any sugary food or often even fruit regardless of availability because they actively dislike things that tas
50.
by jandrewrogers 2mo ago
The sharp discontinuity in insurance costs over a single year for many people when ACA went into effect isn't explained by your dismissal.
51.
by jandrewrogers 2mo ago
ACA also greatly increased costs. As an entrepreneur at the time, insurance premiums increased 25% overnight for the same plan. Many people had similar experiences. That the ACA forced a large number of people to pay a lot more for literall
52.
by jandrewrogers 2mo ago
The differences in life expectancy are due entirely attributable to vehicular accidents, homicide, and life style factors. It has nothing to do with medical care.
53.
by jandrewrogers 2mo ago
FWIW, the methodology that produced this particular result is known to have significant issues. The claimed effect disappears after correcting for them. It also isn't the first time that these authors have published similar studies wit
54.
by jandrewrogers 2mo ago
The point of the futures market is to transfer risk to someone more capable or more willing to manage it. Any effect on supply and demand is a side-effect of this. The risk is inherent. Not everyone that produces a commodity wants to mana
55.
by jandrewrogers 2mo ago
That’s a limitation of your source. Several recipes that I’ve seen passed down from that era were like this. Many of those recipes have an origin that can be googled. I am an accomplished cook and I have a lot of recipes passed down a centu
56.
by jandrewrogers 2mo ago
AI and bitcoin, regardless of what one thinks of them, have made negligible contributions to climate change. It is below the noise floor relative to other major industrial and commercial sources of atmospheric CO2. Virtually all of the curr
57.
by jandrewrogers 2mo ago
Most use cases for SIMD are non-arithmetic in nature and don't assume tidy arrays of homogeneous types. I also use it for some computational geometry but that is the least interesting use case. SIMD is widely used throughout data infra
58.
by jandrewrogers 2mo ago
At risk of over-simplifying, GPUs are wider with limited computational expressiveness and higher memory bandwidth while CPUs are highly expressive computationally (and better connected to I/O) but with lower memory bandwidth. GPUs are
59.
by jandrewrogers 2mo ago
The capabilities of various SIMD ISAs don't have enough intersection to be portable outside of relatively trivial cases. Many of the somewhat unique capabilities are load-bearing, so you want to use them on architectures that support t
60.
by jandrewrogers 2mo ago
Under typical conditions the half-life of sucrose in coke is hours to a couple weeks via acid catalysis. In the body the half-life is seconds to minutes via enzymatic catalysis. The half-life of sucrose is greatly reduced by acidity and to

More ›