Dave_Rosenthal

7 ms·

1.
by Dave_Rosenthal 3mo ago
Great Q--it's weird that Apple, Snowflake, and the other big contributors have put essentially zero calories into documentation/website/etc. There has been some movement lately, though. I'm not sure who exactly to thank,
2.
by Dave_Rosenthal 4mo ago
They say, "our goal here is to improve PostHog as a product for our customers, not to expose or sell models trained on your data" but then don't actually list that as a limitation in the bulleted points. AFAICT this now gives
3.
by Dave_Rosenthal 4mo ago
Simple answer: There is no physical basis, it's style Pedantic answer: Unless the light source has different colors on different sides Complex answer: Kind of. Even a linear color fade (from reality) can turn non-linear (and therefore
4.
by Dave_Rosenthal 8mo ago
The car guys have done it: https://www.youtube.com/watch?v=stfjVt0AbFU
5.
by Dave_Rosenthal 8mo ago
As a boss-man myself, I’ve seen this “don’t let them take advantage of you” sentiment expressed in many discussions about comp and promotions, but I can’t really say I understand it. Am I just out of touch? As I read it, the article is simp
6.
by Dave_Rosenthal 11mo ago
RTM was my TA at MIT for a CS/systems engineering course. It took the students until we did an assignment about the worm to realize who he was IIRC. The students thought it was very cool, but even then, as a TA covering the assignment,
7.
by Dave_Rosenthal 1y ago
Neat visualization. There is a street performer in my town that has them all memorized (and many international zip codes as well) and makes a fun show of it, asking people what zip code they are from and putting them on a map. Sometimes it
8.
by Dave_Rosenthal 1y ago
Sure, let's take a rug as an example. I don't think there is one breakpoint. I think there are a set of axis of quality you invest into, roughly sequentially, as you go up the price scale of objects: - $50 - Something rug-shaped e
9.
by Dave_Rosenthal 1y ago
We thought of that demo with like a week or two to go before the event when we realized we needed something more visceral than a blinking cursor :) So, it stayed with the world because it went semi viral in some tiny circles. But it didn’t
10.
by Dave_Rosenthal 1y ago
The documentation is woefully out of date, sadly. Despite the code being in active development no one is touching the public docs. Though I don’t know for sure, that limitation was probably written something like 10 years ago.
11.
by Dave_Rosenthal 1y ago
Ha, well I met Scherer ~30 years ago in a high school math class and we’ve done three companies together, so you could say we’ve known each other for a bit :)
12.
by Dave_Rosenthal 1y ago
Well, I stand very much corrected since that's me in the video! I forgot that an early version ever made it out into the world.
13.
by Dave_Rosenthal 1y ago
It looks like it might be knobs (which can be changed via config file) called MAX_WRITE_TRANSACTION_LIFE_VERSIONS and MAX_READ_TRANSACTION_LIFE_VERSIONS now (defined in ServerKnobs.cpp)? It's in microseconds and probably needs to be sy
14.
by Dave_Rosenthal 1y ago
You might be able to , but are definitely not supposed to. The client is conceptually "part of the cluster".
15.
by Dave_Rosenthal 1y ago
There have been some 3rd party toy projects in the past years, but pretty sure nothing was ever released by FoundationDB/Apple relating to SQL (until this additional SQL interface on the Apple "record layer").
16.
by Dave_Rosenthal 1y ago
Thanks for the insight. A $XX million exa-data system is no doubt impressive :) > Another big problem I found with modeling real apps was the five second transaction timeout. This is not, as you might expect, a configurable value. It&#x2
17.
by Dave_Rosenthal 1y ago
FoundationDB's original promise was to combine a distributed storage engine with stateless layers on top to expose a variety of useful data structures (including SQL). The company was acquired before it could release the layers part of
18.
by Dave_Rosenthal 1y ago
I was curious to see how audible square wave duty cycle would be (I figured not much) but sadly the audio examples are clearly broken on this page--choosing the same one multiple times gives totally different sounds.
19.
by Dave_Rosenthal 1y ago
Huh, I was actually on this page a few years ago, but iOS and MacOS quality has been super solid for me this past year. Anyone else feel this way? Judging by the nodding comments maybe I’m just the outlier?
20.
by Dave_Rosenthal 2y ago
You were talking to a slightly earlier company--this was post Viaweb.
21.
by Dave_Rosenthal 2y ago
I worked with pg in a three-person startup in a basement in Harvard square just before he started YC. I was an undergrad at MIT and met him after arguing with rtm (who was a TA for my class) about TCP backoff. It was called Aspra and we wer
22.
by Dave_Rosenthal 2y ago
Interesting article. I would have loved to see the quality ratings weighted by how many people drive the roads, not by road-mile. I bet it would look a lot worse. It seems like low traffic roads out in the middle of nowhere are pretty decen
23.
by Dave_Rosenthal 2y ago
What no-one is pointing out is that LLMs have made almost as much progress on the first part of the request as the second! ChatGPT writes me a is_point_in_national_park function and points me to the relevant shapefile in like ~30 seconds. T
24.
by Dave_Rosenthal 2y ago
That class scheduling one is a good place to grok the basics. Just extending the kind of approach introduced there will get you decently far. The best resource after the tutorials is: https://github.com/FoundationDB/awe
25.
by Dave_Rosenthal 2y ago
As a FoundationDB partisan, it's been great to see more and more people starting to build stuff with it. Someone recently told me that they think of FDB as "assembly language for databases". I liked that. I think it faithfull
26.
by Dave_Rosenthal 2y ago
A few comments: - My understanding is that a gamma chirp is the established filter to use for an auditory filter bank--any reason you choose an elliptical filter instead? - I didn't look too closely, but it seems like you are analyzing
27.
by Dave_Rosenthal 2y ago
A lot of people saying stuff like sports or pottery. But I have a hard time thinking of those as art forms meant to be experienced through touch. What comes to mind for me is something like the "Tactile Dome" at the Exploratorium
28.
by Dave_Rosenthal 3y ago
+1 You're not missing anything. And there are plenty of very simple ways to just use a few "special destinations" to encode any move including possible promotions in a constant 12 bits per move and be very fast to encode&#x2F
29.
by Dave_Rosenthal 3y ago
With the "production-grade" part of the title, I was hoping to see bit more about scalability, fault tolerance, updating continually-changing sources of data, A/Bing new versions of models, slow rollout, logging/analytic
30.
by Dave_Rosenthal 3y ago
I think we need to withhold analysis based on the 34 PPD number. In the article you can see that the rendering projection is quite distorted, with the apparent effect of using more pixels per degree for the center part. They don't acco

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