Hacker News: physPop

New comment by physPop in "Data Manipulation in Clojure Compared to R and Python"

physPop — Wed, 25 Mar 2026 12:39:26 +0000

python isn't untyped, its dynamically typed https://stackoverflow.com/questions/2351190/static-dynamic-v...

New comment by physPop in "Looking at Unity made me understand the point of C++ coroutines"

physPop — Wed, 25 Mar 2026 12:34:18 +0000

I feel like thats really oversellign coro -- theres still a TON of boilerplate

New comment by physPop in "UBI as a productivity dividend"

physPop — Sat, 14 Mar 2026 20:57:11 +0000

Aren't utilities, by definition, state owned? Or is that also backwards in america?

New comment by physPop in "GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers"

physPop — Thu, 22 Jan 2026 21:31:14 +0000

Paper mills existed long before LLMs

New comment by physPop in "The struggle of resizing windows on macOS Tahoe"

physPop — Tue, 13 Jan 2026 04:39:13 +0000

it does but you need various config tweaks

New comment by physPop in "Show HN: Use Claude Code to Query 600 GB Indexes over Hacker News, ArXiv, etc."

physPop — Fri, 02 Jan 2026 00:05:45 +0000

its not though. the primary job of software engineers is to ship a product that produces income for their employer.

New comment by physPop in "Feynman's Hughes Lectures: 950 pages of notes"

physPop — Mon, 29 Dec 2025 23:53:39 +0000

patently false, have you attended one of his lecture series in person?

New comment by physPop in "40 percent of fMRI signals do not correspond to actual brain activity"

physPop — Wed, 17 Dec 2025 19:00:20 +0000

re: your last point that is not true. we can measure arbitrarially quickly (Nottingham group does some 3d EVI at ~100ms TRs). You can also reduce volumes and just look at single slices etc, a lot of the fundamental research did this (wash U / Minnesota / etc in the 90s). Its just not all that useful because the SNR tanks and the underlying neurovascular response is inherently low-pass. There is a much faster 'initial-dip' where the bold signal swings the other way and crosses zero (from localized accumulation of DeoxyHg before the inrush of OxyHg from the vascular response). Its a lot better correlated with LFP / spiking measures but just very hard to measure on non-research scanners...

New comment by physPop in "40 percent of fMRI signals do not correspond to actual brain activity"

physPop — Wed, 17 Dec 2025 18:52:38 +0000

Unfortunately, for experts in the field, this is a "we know" article that probably shouldn't have been published, and belongs more in a textbook...

New comment by physPop in "40 percent of fMRI signals do not correspond to actual brain activity"

physPop — Wed, 17 Dec 2025 18:51:05 +0000

agree. especially the comments saying "just address it". Its a lot of technically complicated interactions between the physics, imaging parameters, and processing techniques. Unfortunately the end users (typically neuroscience/psych grad students in labs with minimal oversight) usually run studies that just "throw everything at the wall and see what sticks" not realizing that is the antithesis of the scientific method. No one goes in to a resting state study saying "we're going to test if the resting state signal in the is becuase of ". They instead measure a bunch of stuff find some regions that pass threshold in a group difference and publish it as "neural correlates of X". Its not science, and its why its not reproducible. People have build whole research programs on noise.

New comment by physPop in "40 percent of fMRI signals do not correspond to actual brain activity"

physPop — Wed, 17 Dec 2025 18:47:01 +0000

it doesn't measure the oxygen level directly either. the bold signal is correlated to dephasing induced by the oxy/deoxy hg ratio that isn't even necessarially localized to the voxel (flow or long range magnetic susceptibility perturbations from nearby accumulated deoxyhg (veins)).

New comment by physPop in "40 percent of fMRI signals do not correspond to actual brain activity"

physPop — Wed, 17 Dec 2025 18:42:48 +0000

no. you generally can't irradiate healthy volunteers for studies

New comment by physPop in "What .NET 10 GC changes mean for developers"

physPop — Sun, 05 Oct 2025 22:10:03 +0000

+1 F# is criminally under-used

New comment by physPop in "What .NET 10 GC changes mean for developers"

physPop — Sun, 05 Oct 2025 22:09:46 +0000

honestly this sounds like you've never really done it. FP is much better for ergonomics, developer productivity, correctness. All the important things when writing code.

New comment by physPop in "The current state of LLM-driven development"

physPop — Sun, 10 Aug 2025 13:41:59 +0000

exactly. people delude themselves thinking this is productivity. Tweaking prompts is to get it "right" is very wasteful.

New comment by physPop in "The current state of LLM-driven development"

physPop — Sun, 10 Aug 2025 13:41:07 +0000

it really doesn't take that long. Maybe if you're super junior and never coded before? In that case I'm glad its helping you get into the field. Also, if its taking you months there are whole new models that will get released and you need to learn those quirks again.

New comment by physPop in "Ozempic shows anti-aging effects in trial"

physPop — Wed, 06 Aug 2025 12:36:12 +0000

Because over the course of a billion years of history, evolutionary pressures essentially end after child-rearing ages.

New comment by physPop in "Show HN: Clippy – a better pbcopy for macOS that handles files properly"

physPop — Thu, 17 Jul 2025 03:14:58 +0000

clippy is kind of taken (a very popular rust linter). Suggest considering a new name to differentiate yourself!

New comment by physPop in "Bypassing Google's big anti-adblock update"

physPop — Sun, 13 Jul 2025 21:22:41 +0000

Safari is also not adblocker friendly. Lots of other entrants to try though. Brave in particular is great!

New comment by physPop in "Dependency injection frameworks add confusion"

physPop — Sun, 25 May 2025 22:15:25 +0000

Yes because injecting nowFn is trivial and not a case for DI. Consider a database handle, or network socket, or http response payload. Clearly each class shouldn't be making its own version of those.