<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: dmfdmf</title><link>https://news.ycombinator.com/user?id=dmfdmf</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Thu, 16 Apr 2026 19:28:36 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=dmfdmf" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by dmfdmf in "Who is Satoshi Nakamoto? My quest to unmask Bitcoin's creator"]]></title><description><![CDATA[
<p>My working hypothesis has always been that Satoshi was a CIA or NSA working group partly to fund black ops. Also, it could be that Bitcoin was a psyop to get people used to digital currency followed by the bait and switch to CBDC. Seem to be working.</p>
]]></description><pubDate>Thu, 09 Apr 2026 03:32:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=47698987</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47698987</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47698987</guid></item><item><title><![CDATA[New comment by dmfdmf in "Microsoft rolls back some of its Copilot AI bloat on Windows"]]></title><description><![CDATA[
<p>Now do Onedrive.</p>
]]></description><pubDate>Sun, 22 Mar 2026 18:08:18 +0000</pubDate><link>https://news.ycombinator.com/item?id=47480337</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47480337</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47480337</guid></item><item><title><![CDATA[New comment by dmfdmf in "When Do We Become Adults, Really?"]]></title><description><![CDATA[
<p>> And besides, when I make phrases, is it really me who is speaking? How can anyone ever say anything original, personal, unique to him, when by definition language obliges us to draw from a well of pre-existing words?<p>You need to learn the distinction between a word (the symbol) and the concept (the meaning) of language. By your standard a Frenchman could never communicate with an Englishman but we know that is not the case.</p>
]]></description><pubDate>Sat, 21 Mar 2026 07:10:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=47464703</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47464703</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47464703</guid></item><item><title><![CDATA[New comment by dmfdmf in "When Do We Become Adults, Really?"]]></title><description><![CDATA[
<p>>Scientists define the stages of life in biological, societal, and chronological terms—but none of them quite capture what it’s like to grow up.<p>Because unlike the lesser animals, for a human adulthood is not a biological, societal or a chronological question but an epistemological question. The answer is that you become an adult when you learn to think for and by your self. Most people are not adults by that standard.</p>
]]></description><pubDate>Fri, 20 Mar 2026 22:58:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=47461920</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47461920</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47461920</guid></item><item><title><![CDATA[New comment by dmfdmf in "Our commitment to Windows quality"]]></title><description><![CDATA[
<p>As is tradition, HN has downvoted your legit comments to the twilight realm. I agree with everything you say. Onedrive should be flagged as a virus. Why do they get a pass for things any other app would be blocked for doing?<p>I think the real issue is that MS doesn't view Windows primarily as an OS that should be invisible, out of the way -- with minimal "innovation" geared to sell MS products. The problem is that MS views Windows as a sales/marketing channel for their ads/apps/services.</p>
]]></description><pubDate>Fri, 20 Mar 2026 22:51:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=47461824</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47461824</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47461824</guid></item><item><title><![CDATA[New comment by dmfdmf in "How Can Infinity Come in Many Sizes?"]]></title><description><![CDATA[
<p>Setting aside i, math symbols that stand for irrational numbers can be treated as numbers in theorems or derivations or proofs but one needs to be careful that a symbol such as Pi or SQRT[2] actually designates an infinite series to calculate a rational number. This distinction is important when math equations are actually used to calculate or measure something specific which is the whole point of math. All valid measurements can only result in a rational number. It is the distinction between doing math and doing physics or engineering (i.e. applied math) which has to be integrated, they are not separate fields with regards to measurement.<p>The imaginary number i=SQRT[-1] is the base solution to the polynomial equation -y= x^2. If you read the history it was invented to solve certain types of cubic equations, i.e. as a heuristic of method. So not only is it not a number it is a bare contradiction. While i was useful to solve some subclass of all cubics it did not lead to a general solution to cubic equations. Nevertheless the mathematicians ran with it and added complex numbers to the definition of number so that the number system could solve all possible polynomial equations.<p>In my opinion imaginary numbers are a kludge and deadend and it is masking the real issues in math, i.e. the ghosts of departed quantities. In math some symbols stand for an infinite series but you can't just choose any arbitrary series for Pi or e or SQRT[2], they all have to be defined as part of a <i>system</i> of measurement with clearly defined and globally defined epsilon/delta (i.e. precision) of measurement to get valid results.</p>
]]></description><pubDate>Wed, 25 Feb 2026 03:08:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=47146796</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47146796</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47146796</guid></item><item><title><![CDATA[New comment by dmfdmf in "How Can Infinity Come in Many Sizes?"]]></title><description><![CDATA[
<p>Yes, you can call it "finitist" if you like but that is an error too. Define "exist".<p>Not "most" but all real numbers are similar to Pi, i.e. they are symbols that stand for an infinite process to calculate a rational number. Both irrational numbers like Pi, e, etc. and reals exists and are legit and useful math concepts but infinite precision does not exist "in the wild" only in your mind as an abstraction. In any actual calculation or measurement your infinite series must stop and the dedekind cut must be made.<p>The ghost of departed quantities still haunts math. Is Pi 3.14 or 3.1416? Mathematically, it is neither and both because math intentionally abstracts from the precision of the ratio of the circumference to the diameter of a circle. These open-ended (infinite) processes are ultimately used to define a rational number, a ratio of integers.The finitist -vs- infinitist is a false binary which ignore that actual measurement must use rational numbers.</p>
]]></description><pubDate>Tue, 24 Feb 2026 17:18:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=47139711</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47139711</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47139711</guid></item><item><title><![CDATA[New comment by dmfdmf in "How Can Infinity Come in Many Sizes?"]]></title><description><![CDATA[
<p>Pi is not a number, it stands for a method (i.e. infinite series) to calculate a number. Conceptually it is the ratio of circumferance to the diameter of a circle which are incommensurate quanties, i.e. can't be represented as a rational number.<p>It is a subtle distinction but important. We define the exact value based on the context. If I am tiling my circular patio then 3.14 is fine to calculate how many tiles I need. If I going to the moon or mars then I need more decimals or I will miss the target.</p>
]]></description><pubDate>Tue, 24 Feb 2026 09:03:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=47134687</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47134687</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47134687</guid></item><item><title><![CDATA[New comment by dmfdmf in "How Can Infinity Come in Many Sizes?"]]></title><description><![CDATA[
<p>>Infinity invites resistance. Aristotle rejected the existence of the infinite entirely; to him, infinity was simply a limit that could never be reached, not a true mathematical entity.<p>Off to a bad start. Aristotle was not making a mathematical point but a metaphysical one. Infinities do not exist and is not a number. For example, Pi is not a number but a symbol that stands for an open-ended (infinite) process to calculate a rational number and is a perfectly valid mathematical concept that, I am sure, Aristotle would agree. On any computer, despite protestations by the mathematical platonists, Pi is ultimately a rational number in all use cases involving actual measurement or calculations.<p>The error is illustrated in the first image in the article.<p><a href="https://www.quantamagazine.org/wp-content/themes/quanta2024/frontend/vendors/webflow/visual-explainer/images/Intro_Intro-1_1.svg" rel="nofollow">https://www.quantamagazine.org/wp-content/themes/quanta2024/...</a><p>The third set in this example is an invalid and undefined set by including Pi since Pi is indeterminent and thus cannot be an object to be counted. All of Cantor's nonsense rests on this type of error, i.e. treating a mathematical process as a number. All of these errors are implicit in Newton's calculus and Berkeley's Ghost of Departed Quantities critique still needs to be answered. Hint; there is no such thing as infinite precision and epsilon/delta needs to be defined in a consistent way, not arbitrarily as it is now.</p>
]]></description><pubDate>Tue, 24 Feb 2026 07:06:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=47133810</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47133810</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47133810</guid></item><item><title><![CDATA[New comment by dmfdmf in "Ask HN: What Linux Would Be a Good Transition from Windows 11"]]></title><description><![CDATA[
<p>Check out Zorin OS. As Win10 was approaching its event horizon back in Oct I was thinking of jumping to ZOS. It is similar enough to Windows to be usable. I never made the jump and still running Win10 but soon it will be Linux's day in the sun.</p>
]]></description><pubDate>Tue, 24 Feb 2026 03:23:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=47132461</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=47132461</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47132461</guid></item><item><title><![CDATA[New comment by dmfdmf in "Ask HN: Why did forum culture die?"]]></title><description><![CDATA[
<p>Subreddits have dropped off too. I assumed the migration was to discord or tiktok or other plublic squares.<p>Specialized forum content, discussion and community suffered with the VerticalScope rollup that borged them all a few years back. They immediately upgraded the forum software to be phone app compatible (more eyeballs) and forum quality died soon after. No one is have good discussion, arguments, stories or history while phone posting on the can or in line at the DMV. It is all repetitive drive-by comments or questions that could be answered by a quick search of the forum so it is short attention span theatre now. I saw this across multiple forums that got rolled up by VS.<p>tldr; Vertical Scope and phone app use.<p><a href="https://www.verticalscope.com/our-solutions/be-the-solution/" rel="nofollow">https://www.verticalscope.com/our-solutions/be-the-solution/</a></p>
]]></description><pubDate>Thu, 15 Jan 2026 18:03:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=46636559</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=46636559</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46636559</guid></item><item><title><![CDATA[New comment by dmfdmf in "I Think I Found Something Weird About Physical Constants"]]></title><description><![CDATA[
<p>Interesting post. I noticed that your Optimal: L=2997mm is the same four leading digits as the speed of light 299792458 m/s.<p>I always thought there was a connection between geometry and the math and physical constants. Once I was thinking about Einstein's equivalence principle between gravity and acceleration and his elevator-in-space argument. He claimed that there is no experiment that the man in the elevator could do to determine if he was in a gravity field or accelerating rocket. It occurred to me that all he had to do was wait because the rocket could not accelerate at 9.81 m/s forever. So I did the math lightspeed/acceleration of gravity = 30559883.59 sec = 353.7023 days for 86,400 sec/day or 96.9% of a year to get to c. Just a coincidence, they say.</p>
]]></description><pubDate>Thu, 04 Dec 2025 05:41:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=46144163</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=46144163</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46144163</guid></item><item><title><![CDATA[New comment by dmfdmf in "Passkeys and Modern Authentication"]]></title><description><![CDATA[
<p>I think that now that IPV6 has 2^128 addresses that some of these can be assigned to individuals as a unique ID, maybe at birth like SSN. It could serve as the base of a public key and secret private key blockchain system controlled by the individual or his trusted agent in some kind of identifier/authenticator system. If properly implemented it could serve as an anonymous ID and age verification system on the internet which seems to be coming soon in a not-so anonymous form to a fascist, commie or authoritarian govt near you, i.e. all of them as current events now show.<p>I don't know if that would work but it is an interesting idea to me. However, it also illustrates that authentication and protecting user identity on the web without sacrificing anonymity is a _political_ problem not a technical problem. I have always been told that when thinking about security you have to define what threat are you trying to protect yourself from. I see discussions on security and virtually all of them ignore that the govt or govt controlled corps (i.e. fascism) is a much bigger threat to individuals and freedom than so called "hackers" or "terrorists" and other boogie men, etc.</p>
]]></description><pubDate>Tue, 02 Sep 2025 18:51:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=45107395</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=45107395</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45107395</guid></item><item><title><![CDATA[New comment by dmfdmf in "Ask HN: How do you fight YouTube addiction and procrastination? I'm struggling"]]></title><description><![CDATA[
<p>The best advice I got on breaking a bad habit is that you can't do it by ordering yourself "don't do X" which takes will power and teeth-gritting effort. Any success with this method will fail over time. The problem is that it is like telling yourself to not think about pink elephants which makes you think about pink elephants.<p>So the trick is to set the rule [don't do X, do Y instead] and immediately stop thinking about X and move on to Y. Just shut down the "do X" thought and shift to Y. "Y" can be anything even the absurd like patting the top of your head 5 times because it breaks your subconscious programming. In fact, the absurd Y's seem to be more effective BECAUSE they a silly or ridiculous. Of course, as you gain skill at this method you can start using more productive Y's like doing 10 pushups or do a quick household chore, do a small task on your to-do list, etc. Once the subconscious program is broken then thoughts to do X will fade and you can move on to X2 that you want to change.</p>
]]></description><pubDate>Sun, 31 Aug 2025 19:09:39 +0000</pubDate><link>https://news.ycombinator.com/item?id=45086077</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=45086077</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45086077</guid></item><item><title><![CDATA[New comment by dmfdmf in "Google: 'Your $1000 phone needs our permission to install apps now' [video]"]]></title><description><![CDATA[
<p>You don't actually own your phone if ownership implies control over your property. You just get to pay for it. This was always the goal of our corporate/government "partnership" AKA fascism.<p>Can't wait for Windows 12 to have a mandatory S-Mode and a Microsoft account tied to your PII, for your protection. No anonymous writer can publish the 21st Century equivalent of the Federalist Papers and our tyranny is safe.</p>
]]></description><pubDate>Sun, 31 Aug 2025 17:31:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=45085047</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=45085047</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45085047</guid></item><item><title><![CDATA[New comment by dmfdmf in "Ask HN: Do you believe we are in a particularly chaotic time period?"]]></title><description><![CDATA[
<p>Absolutely. The closest analogy is the social upheaval and changes in societal institutions resulting from the printing press. Read Clay Shirky's "Newspapers and thinking the unthinkable" for a sketch of the impact of the internet.<p><a href="https://news.ycombinator.com/item?id=20052407">https://news.ycombinator.com/item?id=20052407</a><p><a href="https://www.edge.org/conversation/clay_shirky-newspapers-and-thinking-the-unthinkable" rel="nofollow">https://www.edge.org/conversation/clay_shirky-newspapers-and...</a></p>
]]></description><pubDate>Wed, 11 Dec 2024 06:39:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=42385405</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=42385405</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42385405</guid></item><item><title><![CDATA[New comment by dmfdmf in "PID Controller Explainer (2022)"]]></title><description><![CDATA[
<p>I used to design PID process controllers in industry. In watching this vid I realized one reason that designing a self-driving car is so difficult. Toward the end, in the process control diagram, he has [Vehicle] as the controlled process. This reminds me of the old math joke about "assume a spherical cow". The difficulty with a self-driving car is that it isn't just the vehicle that has to be controlled but [Vehicle + Current Road] so the controlled process is not just difficult to model but that it is changing all the time and sometimes rapidly.</p>
]]></description><pubDate>Sat, 06 Apr 2024 16:54:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=39953662</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=39953662</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39953662</guid></item><item><title><![CDATA[New comment by dmfdmf in "Hypothetically I'm a genius, how do I contribute to physics?"]]></title><description><![CDATA[
<p>I think learning it all on your own is not efficient even for a genius. At the very least (assuming you are a genius) you should do a double major in Electrical Engineering and Mechanical Engineering and a minor in philosophy at a mid- or top-tier university. EE and ME are the practical expression of the foundation of classical physics. Einstein's early work was related to integrating these two fields. In short (I am a bit sketchy on the exact details since it has been a while), before Einstein there was an odd inconsistency in Maxwell's equations whereby the results differed if the magnets were moving or the coils were moving in generating electricity. Since all motion is relative, at least mathematically, it should not matter which was moving. Einstein's revolution amounted to modifying the concepts of space and time (using Lorentz transformations) to make that inconsistency go away BUT it is possible that that is not the only possible solution to the puzzle. Once you get your BS degrees you should get your PhD in physics at a mid-tier school or no one will listen to you.<p>The reason you need to minor in philosophy is to understand the history of the field going all the way back to the Greeks. Most importantly, you need to clearly define a theory of concepts and apply it to fundamental concepts such as existence, consciousness, free will, space and time. Current physics (and math, btw) are vitiated by inconsistent fundamental concepts. In fact, Einstein's concept of spacetime is a denial of consciousness (an axiom) and a deadend. The fundamental concepts in physics should be lightspace and gravitytime to avoid this error. You won't learn much in modern philosophy courses in regard to these issues but you need to understand the history and read Ayn Rand's Philosophy:Who_Needs_It, Introduction_To_Objectivist_Epistemology and the title essay of her anthology For_The_New_Intellectual.</p>
]]></description><pubDate>Mon, 11 Mar 2024 20:20:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=39672810</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=39672810</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39672810</guid></item><item><title><![CDATA[New comment by dmfdmf in "Ask HN: Quitting a Toxic Job in a Hurry?"]]></title><description><![CDATA[
<p>It is always easier to find a job when you have a job. Once you have made the decision to leave then putting up with the on-the-job BS is psychologically easier because it reinforces your decision and you know that you are working on getting out, hopefully soon. Also, in today's environment (lots of tech layoffs incoming) it might take you a year to find a suitable alternative. Make sure you have some savings for the transition, brush up your resume and start networking with friends, asssociates or a head hunter. Do not bad mouth your current employer in interviews and don't tell your employer or any coworkers, that will move you to the top of the layoff list if word gets out.</p>
]]></description><pubDate>Fri, 16 Feb 2024 00:12:16 +0000</pubDate><link>https://news.ycombinator.com/item?id=39391203</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=39391203</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39391203</guid></item><item><title><![CDATA[New comment by dmfdmf in "Ask HN: For advice: I'm a mathematician looking for a plan B outside of academia"]]></title><description><![CDATA[
<p>Check out John D. Cook's blog <a href="https://www.johndcook.com/blog/" rel="nofollow noreferrer">https://www.johndcook.com/blog/</a><p>He has a math consulting business which seems very interesting a cool way to make a living. Maybe you can contact him and get some advice.</p>
]]></description><pubDate>Fri, 04 Aug 2023 13:49:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=37000002</link><dc:creator>dmfdmf</dc:creator><comments>https://news.ycombinator.com/item?id=37000002</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=37000002</guid></item></channel></rss>