tibbar

13 ms·

181.
by tibbar 1y ago
I'm not sure if this is true anymore. Some years ago chess.com increased bullet ratings by 150 points to better align them with blitz ratings [0]. [0] https://www.chess.com/news/view/10-minute-chess-now-rapid-r
182.
by tibbar 1y ago
I never use a mouse, which probably makes a difference here: it's all via touchpad.
183.
Fixing the mechanics of my bullet chess(jacobbrazeal.wordpress.com)
40 points by tibbar 1y ago|35 comments
184.
by tibbar 1y ago
Yes, it is very good for employees and ex-employees.
185.
by tibbar 1y ago
What's the alternative here? Do you want them to replicate their infrastructure across different cloud providers with automatic fail-over? That sounds -- heck -- I don't know if modern devops is really up to that. It would probabl
186.
by tibbar 1y ago
What setup are you comparing this to? In the past silicon Macs plus, say, Rancher Desktop have been happy to pretend to build an x86 image for me, but those images have generally not actually worked for me on actual x86 hardware.
187.
by tibbar 1y ago
Interesting, I just learned about matharena.ai. Google cherry-picks one result where they're the best here, but in the overall results, it's still O3 and o4-mini-high who are in the lead.
188.
by tibbar 1y ago
> I’m not asking people to be experts, just to know how it works But if you "know how something works" in detail, such that you fully understand its workings and behavior, you're pretty much an expert. To really know how a
189.
by tibbar 1y ago
> You cannot possibly know if your condensed version is accurate or sufficient if you can't point to the author of it and definitively state that they knew the original material well enough to summarize it. I don't understand h
190.
by tibbar 1y ago
Yeah, the author clearly did not have a good time doing maintenance in one of these buildings, and came to resent her co-workers (and the odds are good that the author was not employed by the same firm as the programmers, increasing the sen
191.
by tibbar 1y ago
I think you underestimate how abysmal many product developers' understanding of databases is:-). It's less about making people respectable experts, more about teaching basic safety principles so they won't do too much damage.
192.
by tibbar 1y ago
It's definitely an overly-broad generalization. But these mental models would still improve how many product engineers work with databases, at the expense of a very simple explanation. I think the interesting question is like, if I hav
193.
by tibbar 1y ago
For example, many NoSQL databases are less sophisticated in query planning.
194.
by tibbar 1y ago
> Not true. If you have single column indexes on both name and email, it could use the two indexes, though not as efficient as a single two-column index. If you query "name plus email" and the index is "name, email, age&qu
195.
by tibbar 1y ago
I think the distinction here is between "I understand that X is a solution to Y", vs. "I understand that X is BASICALLY a mashup of A and B according to scheme C." A lot of times, people reach for X when they have a vagu
196.
by tibbar 1y ago
It seems like the author just really hates working in an office, and interprets office perks as traps to make you spend more time there. I too prefer working from home, but I also see that as a likely anomalous perk and can't be too up
197.
by tibbar 1y ago
Step 1: Your schema has thousands of tables and there aren't many comments. Step 2...
198.
by tibbar 1y ago
AI is far better in style than in substance. That is, an AI-written solution will have all the trappings of expertise and deep thought, but frankly is usually at best mediocre. It's sort of like when you hear someone make a very eloque
199.
by tibbar 1y ago
> Wouldn't seeding the RNG used to pick the next token be more configurable? Sure, that would work. > How would changing the hardware/other software make a difference to what comes out of the model? Floating point arithmetic
200.
by tibbar 1y ago
If you use a deterministic sampling strategy for the next token (e.g., always output the token with the highest probability) then a traditional LLM should be deterministic on the same hardware/software stack.
201.
by tibbar 1y ago
My best engagement on Hacker News has come from submitting great discussion topics; content is secondary. You're trying to think of something that people would really enjoy talking about if they just got the chance. So if you can notic
202.
by tibbar 1y ago
Some important context missing from this post (IMO) is that the data set presented is probably not a very good fit for linear regression, or really most classical models: You can see that there's way more variance at one end of the dat
203.
by tibbar 1y ago
I also thought the UX had silently died on me, but over the course of a few hours, results slowly rolled in. And they were pretty good, for what it's worth! It's clear they have far more demand than supply, at least than can be re
204.
by tibbar 1y ago
Wow, this is such an exciting product to me, a great application of modern tools. I'm using it to search for people who have very specific backgrounds that I would be interested to talk to. Thank you for building this.
205.
by tibbar 1y ago
The thing is, it's actually a very difficult engineering/research/infra problem to run complicated queries on enormous data lakes. All the obvious ways to do it are prohibitively slow and expensive. Every bit of performance y
206.
by tibbar 1y ago
One of my favorite algorithms for this is Expectation Maximization [0]. You would start by estimating each driver's rating as the average of their ratings - and then estimate the bias of each rider by comparing the average rating they
207.
by tibbar 1y ago
Flame graphs are definitely less sophisticated than Superluminal/Tracy/etc, but that's a part of the attraction - you can visualize the output of many profiling tools as a flamegraph without prior setup. I also think it'
208.
by tibbar 1y ago
The submitted title buries the lede: RDS for PostgreSQL 17.4 does not properly implement snapshot isolation.
209.
by tibbar 1y ago
If I were in this situation, and the goal is to draw an owl, and I can spend a year on it, then I'm going to spend an hour tonight looking at owls and maybe doodling a bit. I'm not going to worry about getting the owl perfect righ
210.
by tibbar 1y ago
It is indeed unfortunate, and for what it's worth I think you are not the person people are generally trying to filter out by requiring a degree, given your skills and track record. So you probably would benefit from meeting more peopl

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