Viewing profile — kpreid

A capability system is sort of like having lots and lots of those roles. But a key element is that within the system you don't have to be an administrator or have any kind of privi…

Some people have used it with Raspberry Pis; I don't own any myself. I tried a BeagleBone Black once and found that the CPU couldn't keep up. The CPU use will vary a lot depending …

The thing that happened is RTL-SDR, which is _not_ the name of a product but refers to the _use_ of a mass-market TV receiver USB device that happened to have a raw IQ signal mode …

A public demo instance is blocked on adding sufficient anti-DoS provisions to the server. One possibility I've considered is to make a simulation-only version packaged for Sandstor…

It turns out that UI is hard! But the biggest not-crap thing from back when I wrote that (persistent waterfall) is not actually visible in a screenshot; it would need a video. — a …

As the author, I'll say that there's a large amount of "ooh shiny bleeding edge" and "if it works for me it's fine" going on. I see that newer Safari has a _different_ failure mode…

That is exactly what I plan to do.

The metagame (or "the meta") is the long-term game in which the moves are "I am going to play this character/deck and practice/use these strategies" -- decisions you make at the be…

Rotary motion was used for conversion long before semiconductor devices were invented: https://en.wikipedia.org/wiki/Rotary_converter I don't know what the limits on efficiency are…

The cable is the least likely part to be the source of the problem. The data lines are inside a shield, and in USB they are balanced (“D+” and “D-”). Both of these act to prevent r…

I use this for programs which otherwise output to pagers, when I'd rather have the output just in terminal scrollback. (And unlike the -1 option it's generic to all programs with t…

> Somehow, natural languages appear to fit somewhere in the middle. I don't recall where, but I have heard an argument that there is pressure on the information density of natural …

The old flat had border lines (usually black lines between light-colored backgrounds). The new flat uses differences between background colors to mark the same sorts of boundaries.…

For 35 degrees, you don't need 3D; a ring of 72 35-degree angles is a cycle (with a star pattern, rather than a polygon). There is a similar solution for any rational fraction of a…

Not a bad idea to respond to visibility, but to solve the blob problem it would be better to explicitly synchronize text creation and text position. This is basic in game/simulatio…

Only specific questions: “This question is protected to prevent "thanks!", "me too!", or spam answers by new users. To answer it, you must have earned at least 10 reputation on thi…

I like it. Feature request: once I've picked a search result, (allow me to) hide the results — that is, have no left sidebar, so the whole UI fits in a smaller window.

The halting problem is undecidable over all possible Turing machines (i.e. programs, assuming Turing machines are an adequate model for the sort of programs of interest). It is ent…

A bit of disagreement with your last paragraph: The (Common) Lisp macro processor is Turing-complete trivially because it invokes a Turing-complete language along the way, not beca…

display: (table | table-cell | table-row); Same layout functionality, no abuse of HTML semantics.

Design by committee ("the players say they really want X, let's include X") is not the same thing as design with consideration of feedback ("the players really liked X_0, let's bui…

I note that this is the same workflow as for making a modified copy of some content on a wiki. (And when a page is read-only on MediaWiki, "edit" becomes labeled "view source", but…

So did the Newton (1993 per Wikipedia). I remember it as my first-ever encounter with a (small) switching power supply — it seemed unreasonably light as “wall-warts” went.

The integrity of any "static file" which is a HTML or JS component of a web application is necessary to the security of that entire application. (Unfortunately.)

Indeed this is good style. The following, however, is not good style for allocating an array: long_struct_name *fooArray = malloc(count * sizeof * fooArray);