georgewfraser

8 ms·

31.
by georgewfraser 4y ago
Going to hazard a guess that he’s mad that Tesla isn’t a customer of his embedded-software-testing product https://www.ghs.com/
32.
by georgewfraser 4y ago
This is such a huge problem. It's even worse than it looks: because users are slow to upgrade, changes to the database system take years to percolate down to the 99th percentile user. The decreases the incentive to do certain kinds of
33.
by georgewfraser 4y ago
It is amazing how many large-scale applications run on a single or a few large RDBMS. It seems like a bad idea at first: surely a single point of failure must be bad for availability and scalability? But it turns out you can achieve excelle
34.
by georgewfraser 5y ago
Wolfram wolfram wolfram wolfram! Wolfram’s wolfram wolfram, wolfram wolfram. Wolfram wolfram? Wolfram wolfram wolfram wolfram.
35.
by georgewfraser 5y ago
I would love to run a time-series benchmark against a good column store like Snowflake to see if purpose-built time series databases are actually faster. I have a sneaking suspicion the time scale databases are just reinventing the column s
36.
by georgewfraser 5y ago
I’ve bought two monitors that I really loved: an Apple Cinema Display 27” for $2000 in 2003, which was a crazy amount of money for a monitor at the time. I used it for 12 years. And an Apple Pro display with all the options for $7k last yea
37.
by georgewfraser 5y ago
It’s at least $1,000/sqft all-in. Construction costs have gone up a lot in recent years, and architecturally designed houses like this are expensive to design and build.
38.
by georgewfraser 5y ago
It’s too bad they didn’t share their final costs, there’s very little public info on how much custom builds like this really cost. I think people are a little embarrassed by how much they spent and so they don’t want to reveal it.
39.
by georgewfraser 5y ago
This is one of my favorite weird biological facts. It actually happened to a friend of mine. It shows that the programming for regeneration is in there, we just need to activate it.
40.
by georgewfraser 5y ago
Doh, how did I miss that? Now I understand: the phantom breaking is all on non-highways. I only use autopilot on highways and highway-like roads.
41.
by georgewfraser 5y ago
I don’t know how to square this review with my own experience of owning a Y for a year. The autopilot is nearly perfect, noticeably better than a human driver in stop and go traffic on the highway. Given the history of downright dishonest r
42.
by georgewfraser 5y ago
No recursion and no lambda.
43.
by georgewfraser 5y ago
A radically different alternative with a lot going for it is Starlark: https://github.com/bazelbuild/starlark It’s a deterministic subset of Python. This means that if you have complex or repetitive configurations, you
44.
by georgewfraser 5y ago
The fact that neurons on top of each other have similar firing properties is very interesting, and is indeed a uniform organizing principle of the cortex. Calling this “minicolumns” is very misleading because it implies some level of horizo
45.
by georgewfraser 5y ago
Disclaimer: have personally recorded from whisker barrels, the structure that inspired Vernon Mountcastle to posit the idea of the cortical column. He’s my neuro-great-grandfather according to neurotree: https://neurotree.org&#x2
46.
by georgewfraser 5y ago
The cortical column was a hypothesis about a general organizational principle for the cortex, which turned out to be more or less false but which has lived on as a kind of “zombie science” because too many people built their careers around
47.
by georgewfraser 5y ago
It’s fantastic that they’re bypassing the NIMBYs and building high density, but it’s terrible that they’re building the 10,000th attempt at modern architecture’s worst idea, “towers in the park”, which fails every time it is tried.
48.
by georgewfraser 5y ago
A data mart is a logical organization of data to help humans understand the schema. What I am describing is a physical optimization, extremely similar to what an OLAP cube would do, but implemented on top of a SQL data warehouse. It’s an or
49.
by georgewfraser 5y ago
It’s much smaller than the original table. If you compute lots of these, then voila, you have an OLAP cube.
50.
by georgewfraser 5y ago
The OLAP cube needs to come back, as an optimization of a data-warehouse-centric workflow. If you are routinely running queries like: SELECT dimension, measure FROM table WHERE filter = ? GROUP BY 1 You can save a lot
51.
by georgewfraser 5y ago
I wonder why Aurora shares undo logs between replicas? It’s perfectly possible for the read replicas to each re-create their own copy of the undo logs, and retain those undo logs for different durations based on the different long-running q
52.
by georgewfraser 5y ago
Anyone thinking about using Confluent as some kind of alternative to a database should read this blog post outlining the myriad correctness problems with ksqlDB: https://scattered-thoughts.net/writing/internal-consisten
53.
by georgewfraser 5y ago
sccache[1] is a similar project, which supports remote execution and caching for C, C++, and Rust. Unfortunately the remote-execution mechanism is designed for Mozilla's internal environment and doesn't support cloud backends like
54.
by georgewfraser 5y ago
I was thinking more along the lines of, specific tables for different classes of entity, with a schema that’s as fixed as possible, so you get the most compact and indexable representation.
55.
by georgewfraser 5y ago
I have always wanted to try setting up a low-tech version of this, where instead of using a light-field display, you assume that you have only one viewer and you simply render the correct point of view on the screen. This is the same techni
56.
by georgewfraser 5y ago
Salesforce and JIRA both did something similar: their underlying database schema is very generic, basically keys and values, allowing arbitrary logical schemas to be defined at runtime. Yet in both cases, they ended up not really taking adv
57.
by georgewfraser 6y ago
This is a mostly-fake, media phenomenon. Most CEOs and most companies do not engage in political activism, we just tend not to notice people not speaking out . What's described in this article is something the authors (and most journa
58.
by georgewfraser 6y ago
I did my PhD in this field, I love that Neuralink is doing what they’re doing, but I also agree with this article. Your hands on a keyboard is a fantastic brain computer interface and represent a high bar that an implanted BCI must clear
59.
by georgewfraser 6y ago
Using the joy of cooking instead of google for finding recipes was a funny revelation for me. The index of a book is so much better than web search for this scenario: - Only one recipe. - Vetted to be high quality. - Gets straight to the po
60.
by georgewfraser 6y ago
Bazel guarantees that each build step depends only on its declared inputs, and that each step is deterministic. So if the inputs to a step have not changed, Bazel can skip that step and use a cached copy of the result of that step. If you b

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