gjstein
Joined 11 years ago
Karma
529
Submissions
103
Member since
Oct 2
Recent submissions
Comment · 1 month ago
I also genuinely cannot believe how broken Mission Control is. I use it constantly and the flickering, black spaces, and other small issues lead to an overall frustrating experience I did not have in 26. I'm very surprised that these issues didn't come up on HN from all the beta users, many reporting that they're very happy with 27. Is Mission Control a feature that those likely to download the beta are disproportionately unlikely to use?
Comment · 9 months ago
DC local. Total outage this afternoon. SOS on my phone for a few hours. Unable to log into my account.
Comment · 11 months ago
What sort of laptop/desktop do you have? I regularly use my AirPods with my Steam Deck and they work great!
Comment · 1 year ago
Ursula Le Guin in her preface to The Left Hand of Darkness [1], describes Science Fiction as "descriptive." She invents "elaborately circumstantial lies" as a means of describing what she sees as some truth in our being. The full quote:
> I’m merely observing, in the peculiar, devious, and thought-experimental manner proper to science fiction, that if you look at us at certain odd times of day in certain weathers, we already are. I am not predicting, or prescribing. I am describing. I am describing certain aspects of psychological reality in the novelist’s way, which is by inventing elaborately circumstantial lies.
This is how I think about both science fiction and fantasy. Elements of world building are different, even within each sub-genre, but this element of incorporating elements that are inconsistent with our world to tell stories is common to both. It's also why the term "speculative fiction" persists: a category that subsumes sci-fi and fantasy.
[1] Read that full preface here: https://www.penguinrandomhouse.ca/books/342990/the-left-hand...
Comment · 1 year ago
Feynman is no random celebrity. In addition to be a renowned physicist, his famous "Feynman Lectures" and his thoughts on pedagogy are similarly legendary.
Comment · 1 year ago
So far, no one has mentioned "Bug Algorithms", which have a similar structure of (1) walk in the direction of the goal, (2) walk around obstacles as they are encountered, (3) leave the obstacle to proceed when some condition is met. They are very simple to implement (though not optimal) and there are a number of variants to play around with. Howie Choset has some good lecture slides that describe them [1]. However, as some others have mentioned, something like Jump Point Search [2] is likely a better option given the described scenario.
[1] https://www.cs.cmu.edu/~motionplanning/lecture/Chap2-Bug-Alg... [2] https://en.wikipedia.org/wiki/Jump_point_search
Comment · 2 years ago
The idea that this is a drop in replacement for numpy (e.g., `import cupy as np`) is quite nice, though I've gotten similar benefit out of using `pytorch` for this purpose. It's a very popular and well-supported library with a syntax that's similar to numpy.
However, the AMD-GPU compatibility for CuPy is quite an attractive feature.
Comment · 2 years ago
Similar: XKCD conducted a color survey back in 2010 [1]. The results are detailed and the writeup quite interesting.
Comment · 2 years ago
I'd also like to mention the classic book "Reinforcement Learning" by Sutton & Barto, which goes into some relevant mathematical aspects for choosing the "best" among a set of options. They have a full link of the PDF for free on their website [1]. Chapter 2 on "Multi-Armed Bandits" is where to start.
Comment · 2 years ago
Doesn't Slack violate that constraint? Slack allows (or at least seems to) using iOS system emoji to respond to messages.
Comment · 2 years ago
This is true enough, though remember that material properties change dramatically when you start moving through wavelengths by orders of magnitude. Silicon is transparent in the mid-infrared, which is what makes silicon photonics possible [1]
Comment · 2 years ago
This is a cynical take on what I think is a meaningful benefit that the above commenter is talking about. If you use ChatGPT to learn concepts and approach it with the caveat that you should make sure you understand what you are trying to learn (something that helps to verify that what is being presented to you by the system is "accurate"), it's a fantastic resource. That isn't to say it's true for learning all things, but I'm generally impressed and optimistic for ChatGPT to be as valuable a teaching/learning resource as any other I might find on the web.
Comment · 3 years ago
I have some mixed feelings about this. I used to do this ~10 years ago when I was a distance runner, but now exercising so hard will throw my body off in other ways and I don't feel good having pushed so hard. Perhaps this is exactly the point you're making, but I don't target zone 5 for long these days. Deep sleep, sure, but at what cost to the rest of my body?
Comment · 3 years ago
Agreed! I've never seen something like this before, but it seems that all articles in this (nascent) journal have the same sort of information. Does anyone know if this is standard across journals for research in this space?