Hacker News: roi

A Half-Year with Decker (HyperCard-Inspired Playground)

roi — Tue, 30 May 2023 16:29:20 +0000

Article URL: http://beyondloom.com/blog/unionstate.html

Comments URL: https://news.ycombinator.com/item?id=36126847

Points: 3

# Comments: 0

New comment by roi in "Kiwi Farms is down across all domains as DDoS-Guard terminates service"

roi — Mon, 05 Sep 2022 19:41:44 +0000

This argument can't persuade those who never have any views of their own and always adopt the currently acceptable ones.

New comment by roi in "Pippi and the Moomins"

roi — Thu, 12 Nov 2020 17:39:42 +0000

A wonderful video that references several children animes of that time, including the Moomins: https://www.youtube.com/watch?v=wJSk3sh3zlo

New comment by roi in "The Secret Math Society Known as Nicolas Bourbaki"

roi — Tue, 10 Nov 2020 17:00:16 +0000

Benoit Mandelbrot often complained about this style of mathematics, and how its dominance in France forced him to go to the US. See for example: https://www.youtube.com/watch?v=BNyuXKOMU5k https://www.youtube.com/watch?v=R9k1o2RmqVc https://www.youtube.com/watch?v=_jRId9PNd6A (his uncle, Szolem Mandelbrojt was a founding member of Bourbaki).

New comment by roi in "Why Should You Learn Vim in 2020"

roi — Wed, 05 Aug 2020 20:58:11 +0000

Most command-line interfaces use the readline library. To switch them to vi bindings put the following in ~/.inputrc:

  set editing-mode vi

Masks4All: Wear a mask to stop the spread of Coronavirus (Jeremy Howard)

roi — Tue, 31 Mar 2020 13:02:21 +0000

Article URL: https://masks4all.co/

Comments URL: https://news.ycombinator.com/item?id=22737062

Points: 118

# Comments: 150

New comment by roi in "Gilbert Strang Teaches Linear Algebra"

roi — Sat, 22 Feb 2020 18:06:27 +0000

The course seems to be still mirrored in the Internet Archive: https://archive.org/details/academictorrents_54cd86f3038dfd4...

New comment by roi in "Research UNIX: Annotated Excerpts from the Programmer’s Manual, 1971-1986 [pdf]"

roi — Fri, 31 Jan 2020 18:24:48 +0000

This is just the intro. The full document is available at https://archive.org/details/a_research_unix_reader/ .

Reading List: Sunburst and Luminary (The Apollo Guidance Software)

roi — Wed, 06 Nov 2019 20:52:48 +0000

Article URL: https://www.fourmilab.ch/fourmilog/archives/2019-11/001849.html

Comments URL: https://news.ycombinator.com/item?id=21467109

Points: 1

# Comments: 0

New comment by roi in "New year, same old plans"

roi — Wed, 03 Apr 2019 12:34:28 +0000

The text editor Vis (https://github.com/martanne/vis, previous discussion: https://news.ycombinator.com/item?id=15710533, https://news.ycombinator.com/item?id=11445389) is explicitly inspired by sam's structural regular expressions.

Quantum Computing for the Curious

roi — Mon, 18 Mar 2019 23:53:34 +0000

Article URL: https://quantum.country/qcvc/

Comments URL: https://news.ycombinator.com/item?id=19426573

Points: 154

# Comments: 24

New comment by roi in "What every physicist should know about string theory"

roi — Mon, 11 Feb 2019 22:08:09 +0000

Peter Woit's critique of this article: http://www.math.columbia.edu/~woit/wordpress/?p=8068.

New comment by roi in "The Spacing Effect: How to Improve Learning and Maximize Retention"

roi — Wed, 19 Dec 2018 00:33:35 +0000

The best introduction to spaced repetition, Michael Nielsen's Augmenting Long-term Memory (http://augmentingcognition.com/ltm.html), includes a detailed explanation of how to use Anki for studying books.

New comment by roi in "A Programmer's Introduction to Mathematics"

roi — Sun, 02 Dec 2018 11:17:46 +0000

"...study actively. Don't just read it: fight it! Ask your own questions, look for your own examples, discover your own proofs. Is the hypothesis necessary? Is the converse true? What happens in the classical special case? What about the degenerate cases? Where does the proof use the hypothesis?...it is not a good idea to open a book on page 1 and read it, working all the problems in order, till you come to the last page. It's a bad idea. The material is arranged in the book so that its linear reading is logically defensible, to be sure, but we readers are human, all different from one another and from the author, and each of us is likely to find something difficult that is easy for someone else. My advice is to read till you come to a definition new to you, and then stop and try to think of examples and non-examples, or till you come to a theorem new to you, and then stop and try to understand it and prove it for yourself --- and, most important, when you come to an obstacle, a mysterious passage, an unsolvable problem, just skip it. Jump ahead, try the next problem, turn the page, go to the next chapter, or even abandon the book and start another one. Books may be linearly ordered, but our minds are not."

(P.R. Halmos)

New comment by roi in "A Look at the Design of Lua"

roi — Tue, 30 Oct 2018 14:53:22 +0000

mruby (http://mruby.org/, https://github.com/mruby/mruby) is the official attempt to do just that. Depending on what you count it's around 30-60kLOC. It has a standalone bytecode compiler, so the parser (which is "only" 6kLOC) doesn't have to be a part of the runtime.

New comment by roi in "To Remember Everything You Learn, Surrender to This Algorithm (2008)"

roi — Wed, 08 Aug 2018 11:20:58 +0000

The best and most practical introduction to spaced repetition is Michael Nielsen's Augmenting Long-term Memory (http://augmentingcognition.com/ltm.html), already discussed in https://news.ycombinator.com/item?id=17460513.

New comment by roi in "NetBSD 8.0 released"

roi — Sun, 22 Jul 2018 00:29:32 +0000

Another option is Void Linux, which is explicitly inspired by NetBSD.

New comment by roi in "Tom Lehrer at 90: a life of scientific satire"

roi — Fri, 06 Apr 2018 22:46:16 +0000

Maybe Leo Maslíah.

New comment by roi in "Some excerpts from recent Alan Kay emails"

roi — Sun, 31 Dec 2017 14:06:32 +0000

The thing is that Licklider's vision of computers as "interactive intellectual amplifiers for all humans, pervasively networked world-wide" has already come to pass, and created huge economies of scale and exponential pressures for compatibility and conformity that didn't exist before.

In the 1970's a few dozen brilliant people could create a completely new and self-contained computer system because the entire computing world was tiny and fragmented. there wasn't the imperative to be compatible to all-pervasive standards (even IBM's dominance in business was being challenged by the minis).

These day if you want to create a new computer system that people will use you need at the minimum to provide a networking stack and a functional web browser, some emulation or compatibility system to support legacy software that people rely on, device drivers for a huge range of hardware, etc. All this not only takes a huge amount of work, it also punctures the design integrity of your system, making it into a huge mountain of compatibility hacks before you even start on your own new concepts. But the deadliest enemy of innovation is the mental inertia of masses of users with a long history of interacting with computers. They are no longer the blank slates who have never seen a computer you had in the 70's.

Even in the realm of art people realized that the romantic or modernistic model of artistic revolution that Kay invokes is untenable and retreated into postmodernism.

New comment by roi in "The Hungarian Approach and How It Fits the American Educational Landscape (2015)"

roi — Mon, 13 Nov 2017 09:45:44 +0000

Except for Bolyai, all mentioned above are indeed Jewish. Also all mentioned in your other comment (Fejér etc.) except Bollobás. Also Wigner, mentioned in another comment.