jandrewrogers

7 ms·

91.
by jandrewrogers 3mo ago
Nothing exposed here is something hardcore cryptanalytic people don’t already suspect and possibly know. The subtle leakiness of AES has been known for many years and a lot of research in this domain isn’t published.
92.
by jandrewrogers 3mo ago
> The median American household has $8000 of liquid cash in all of their cash accounts combined. That’s a lot of liquid cash. It reinforces the idea that the median American household has an unparalleled amount of money to burn on whatev
93.
by jandrewrogers 3mo ago
The concept has not always had this name, that is more recent branding. ~25 years ago it was formalized by a proof that optimal generalized learning is a universal sequence prediction problem. An unfortunate property of universal sequence p
94.
by jandrewrogers 3mo ago
I think everyone learns these lessons the hard way. I know I did. The difficulty of designing robust schedulers in real systems comes from the confluence of two properties: a theoretically optimal schedule guarantees no bound on task latenc
95.
by jandrewrogers 3mo ago
That article is a bit incoherent. I think it is pretty clear at this point that Apple has gone all-in on being the ideal edge silicon for AI. This leverages their core competencies, requires only modest investment, and will likely pay out n
96.
by jandrewrogers 3mo ago
Yes of course. But their use of the PIN will likely only occur if you answer, which many people will. This is a common setup in interrogations.
97.
by jandrewrogers 3mo ago
The police will ask you if the PIN unlocks the phone before using it.
98.
by jandrewrogers 3mo ago
No, virtually all the radiation with the exception of UV is passing straight through the airframe. The protection an aircraft body offers is negligible.
99.
by jandrewrogers 3mo ago
Somewhat, but for distributed systems I’ve found game theory to be more useful. Which does end up looking like high-order control theory in many cases.
100.
by jandrewrogers 3mo ago
Australia at least is taking it very seriously and aggressively upgrading their capabilities. If things go down in the Pacific no one will be safe.
101.
by jandrewrogers 3mo ago
Cheap drones are only effective against soft targets. Many high priority targets are not soft. Even Ukraine invests in expensive systems to defeat harder targets.
102.
by jandrewrogers 3mo ago
It literally doesn't matter if drops 50% in a year. That is a paper loss and you have years worth of cash you can spend while waiting for it to recover. If you panic-sell at the bottom of that market then that's on you. It isn&#x2
103.
by jandrewrogers 3mo ago
That is an overly conservative approach that sacrifices a lot of growth for not much more safety. It also exposes you to inflation risk, which is a significant concern these days. Most people in actual retirement I know do something like ke
104.
by jandrewrogers 3mo ago
Dogfights aren't really a thing for a modern military. What the AI enables is much higher endurance than is feasible with a human in the loop. They planes can stay flying as long as they can be refueled, which is also going AI.
105.
by jandrewrogers 3mo ago
The US military has thousands of old airframes, many of which can be made flyable with very short turnaround. They already use the F-16 as test targets. Taking an obsolete airframe that is already paid for and adding AI to it is much cheape
106.
by jandrewrogers 3mo ago
Most scalar-to-SIMD conversion requires changing the design of data structures and algorithms to be effective. Compilers are required to exactly reproduce the specified data structures in a deterministic way for obvious reasons. Even if com
107.
by jandrewrogers 3mo ago
This has been discussed in strategic geopolitical circles for a long time. When surveying defense analysts and similar if they believe a "great powers conflict" will occur in the near future, the percentage that say yes has been r
108.
by jandrewrogers 3mo ago
A war with large geographic scope has been independently modeled as having a high probability of occurring circa 2030 by major governments for a decade or more. As time has passed, reality has not diverged from those models, so confidence i
109.
by jandrewrogers 3mo ago
Property tax pays for maintaining the utilities and services connected to the property. If you buy land that is completely unconnected from public services, you will find that the corresponding property taxes are extremely low. I've ha
110.
by jandrewrogers 3mo ago
In the US, bricks and concrete are unsafe , not "higher quality". Much of the US has severe earthquakes which collapsed the European-style masonry buildings they used to build. There are many old photos of what happened to cities
111.
by jandrewrogers 3mo ago
It depends on the country. The US has the ability to do the equivalent of deep "duck typing" with almost no documentation even if you've been off the grid in the developing world for a long time. This is a case where the inte
112.
by jandrewrogers 3mo ago
Static memory allocation is idiomatic in high-performance software. You do the same in C++ if you care about performance and reliability.
113.
by jandrewrogers 3mo ago
The direct cost of manufacturing the units is only a small percentage of the total costs of the retail product. Logistics is often a bigger cost. You can create substantial economic efficiencies elsewhere in the supply chain by allowing som
114.
by jandrewrogers 3mo ago
Market clearing prices can be negative i.e. you have to pay someone to "buy" them. This regularly happens in commodities markets. In agriculture, for example, negative market clearing prices is why a lot of food ends up in a landf
115.
by jandrewrogers 3mo ago
Unfortunately, there is an issue with food pantries where people who are not in need use them because free food. People can be shameless. It is a minority but still too common and doesn't come with the stigma it deserves in some places
116.
by jandrewrogers 3mo ago
There is no global definition of "less common size". It varies greatly from one locale to another. At the same time, production has relatively high fixed costs and is centralized. It would be very expensive for the global factory
117.
by jandrewrogers 3mo ago
Happens all the time at my local butcher shop. They make a point of using the whole animal -- no waste -- but that means they are frequently out of the more popular products. For the most popular parts you sometimes have to reserve it a wee
118.
by jandrewrogers 3mo ago
Currently, unpopular sizes are over-produced because they are subsidized by popular sizes. If the unpopular sizes have to be paid for, the logistics and production processes would push producers to under-produce popular sizes. A key insight
119.
by jandrewrogers 3mo ago
Who pays for the logistics cost of moving and stocking these products in discount stores and giveaway centers? That is a large percentage of the total cost of production and the reason disposal is cheaper. If those costs are paid for by tax
120.
by jandrewrogers 3mo ago
I think you may be confused about what "throughput-optimized" means. HFT is not throughput-optimized by definition. The LMAX link literally says it is a latency-optimized system. An optimal throughput-optimized system has unbounde

More ›