tbenst

7 ms·

31.
by tbenst 4y ago
As an experimental neuroscientist that has recorded fairly extensively from brain organoids, I would advise that these are HIGHLY underdeveloped cultures. When patch clamping, I had to depolarize neurons in a human brain organoid to -25mV t
32.
by tbenst 4y ago
Arguably from a mathematical perspective, the choice of ‘+’ is poor as it implies that the operation is commutative when it’s only associative. Julia used “foo” * “bar” for this reason: https://groups.google.com/g/juli
33.
by tbenst 4y ago
Mainly use WhatsApp to chat with European friends or a group chat that includes someone with android. Else it’s all iMessage, Telegram, Signal, and Slack / Discord for more community groups. And the occasional Instagram or Twitter DMs.
34.
by tbenst 5y ago
MI is quite useful and widely used. It typically requires binning data though when distributions are unknown / empirically estimated. This approach is a rank-based score, more similar to Spearman correlation than Pearson. This allows f
35.
by tbenst 5y ago
Love my Advantage2, and only complaint is the USB cable has insufficient strain relief, and I've already replaced two cables, almost once a year. So bluetooth is a welcome sight. Am I the only one that prefers the monolith body? I typi
36.
by tbenst 5y ago
I had to look it up too, but big drawback is ZMK does not yet support macros. So only the Advantage360 supports macros for now, the Advantage360 Professional does not ( https://zmk.dev/docs )
37.
by tbenst 5y ago
Could you point to it? Thanks
38.
by tbenst 5y ago
Similar issues for me on Precision 5520 (stock Ubuntu). Laptop nearly fried itself in my backpack from overheating—-can’t reason causally for sure but seems like it destroyed a chip involved with power regulation and damaged some liquid cry
39.
by tbenst 5y ago
The game is called Wiki Ball! I played it too—fond memories of navigating category pages..
40.
by tbenst 5y ago
I’m using high frequency in a domain specific way here: neuroscientists consider gamma (30-100Hz) to be high (temporal)frequency for action potential activity. But I wasn’t just referring to temporal filtering—the skull acts as a low-pass s
41.
by tbenst 5y ago
Thanks for the comment, supercollider is really neat! Also just learned about Tidal Cycles, a Haskell library that builds on SuperCollider with a higher level functional syntax.
42.
by tbenst 5y ago
The big challenge for non-invasive BCI is that most interesting information content in the brain (e.g. speech) is encoded in high frequency firing activity, and the skull acts as a low-pass filter.
43.
by tbenst 5y ago
OCAML is used extensively for high-frequency trading, so indeed functional languages are used all the time in low latency settings. Galois has done work in Haskell for developing hard real-time applications. Here’s a dataflow language they
44.
by tbenst 5y ago
Looks cool, thanks for the link. I can’t find any documentation or info on actually using it, know if there are any articles or other resources floating around?
45.
by tbenst 5y ago
I think “while loops” are orthogonal to primitive recursive functions.. for example, here’s how to compute the Ackerman function using only recursion in several languages; https://stackoverflow.com/questions/16115815&#x
46.
by tbenst 5y ago
Congrats on the traction! Took a look at the stream and seems like a ton of engagement. I watched a few minutes (~5) but can’t say I observed any scientific content or signs of a teaching curriculum. What would someone have learned after wa
47.
by tbenst 5y ago
I’m much more worried about adversarial attacks rather than accidental false positives. For example, a year ago I was trying to track down how some unscrupulous photos ended up in my photo library. I finally realized that Telegram had, with
48.
by tbenst 5y ago
Another beauty of CSV is its compatability with git / versioning. SQLite databases are in contrast a nightmare, and git merges often corrupt files.
49.
by tbenst 5y ago
Agreed! Flux & other Julia Ml packages are awesome and have best in class API. Performance and memory usage aren’t yet on par with TF/PyTorch (or at least when I last checked last year), but with more contributors and time I could
50.
by tbenst 5y ago
I think this makes great sense at the world population level. And after all, the Pfizer vaccine is only 30μg per dose, with equivalent (marginally higher) efficacy at preventing disease. The RNA sequences are highly similar as well, so I do
51.
by tbenst 5y ago
I use Julia as my main driver these days and have shared some of this experience but not all 1) I use VScode and have had 0 problems with Revise. It Just Works when using the Julia extension + built in REPL. I actually prefer the Julia envi
52.
by tbenst 5y ago
This article and others report that the plane was instructed to land in Minsk, even though Vilnius was closer. That doesn’t sound like following safety protocols to me
53.
by tbenst 5y ago
There is a notion of General or Standard American English [1]. Similarly, in Britain there’s Received Pronunciation [2]. Of course these are a social construct, but it’s not unfair to characterize that: “General American English or General
54.
by tbenst 5y ago
You make a strong claim with no supporting evidence or analysis. On the other hand, we have roughly 3.3M (Econimist) or 3.4M (Financial, Times [1]) confirmed COVID-19 deaths. Is it so surprising that only 25-50% of actual deaths due to COVI
55.
by tbenst 5y ago
Your intuition is correct but, unfortunately, it’s not simply a convolution. A great example of this is DiffuserCam [1], which uses a diffuser as a “lens”, combined with a carefully measured point spread function (PSF) of a single point for
56.
by tbenst 5y ago
I prefer the quantitative approach taken by Carpalx [1]. This analysis finds that Dvorak and Colemak are both substantially better than QWERTY, but Colemak has the edge. [1] http://mkweb.bcgsc.ca/carpalx/?popular_altern
57.
by tbenst 6y ago
I run a small VC fund focused on early/seed companies: https://asimovventures.com/portfolio/ We’ve done a lot in robotics and 3D printing. Love talking to founders working on hard technical problems. Feel free to
58.
by tbenst 6y ago
No you didn’t misread, I did, my apologies. And I appreciate your skepticism! While responding to you I did a lot more reading, and I’m more sympathetic to the possibility of “lab leak” than when we started discussing. Ultimately this needs
59.
by tbenst 6y ago
Thank you for this thoughtful post! I learned something and would like to revise my opinion. Also came across this excellent article that covers some of the scientific discussion: https://undark.org/2021/03/17&#x2F
60.
by tbenst 6y ago
If you’re open hearing new information and revising your position, please consider listening to the podcast from Nature that I linked to in another comment. It’s not controversial nor misleading to say that [edit: much of] the scientific co

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