<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: _moof</title><link>https://news.ycombinator.com/user?id=_moof</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sun, 04 Oct 2026 16:52:21 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=_moof" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by _moof in "SpaceX's Starship launching to orbit for first time ever today"]]></title><description><![CDATA[
<p>Altitude doesn't change (much) at the point where an orbit raising maneuver is performed. It increases the altitude of the <i>rest</i> of the orbit, with the greatest change ~180 degrees later.<p>If you'll excuse some poor ASCII art:<p><pre><code>                                       _______
                  ______              /       \
                 /      \            /         \
    burn here -> *    O |    result: |    O    |
  in elliptical  \______/            \         /
    orbit                             \_______/</code></pre></p>
]]></description><pubDate>Mon, 28 Sep 2026 19:33:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=49883227</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49883227</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49883227</guid></item><item><title><![CDATA[New comment by _moof in "Real-time feedback: My closing move in every interview"]]></title><description><![CDATA[
<p>You've got 30-45 minutes with the candidate. Is this question the best use of that time?</p>
]]></description><pubDate>Sun, 27 Sep 2026 06:46:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=49864018</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49864018</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49864018</guid></item><item><title><![CDATA[New comment by _moof in "Anecdotally, programmers dislike "reduce""]]></title><description><![CDATA[
<p>What's hard to understand about it? It's just<p><pre><code>  x = initial
  for y in collection:
    x = f(y, x)</code></pre></p>
]]></description><pubDate>Thu, 17 Sep 2026 06:09:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=49736983</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49736983</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49736983</guid></item><item><title><![CDATA[New comment by _moof in "Let's make quality the norm again"]]></title><description><![CDATA[
<p>Walmart used to be (and maybe still is?) known for doing this. They would get companies to produce lower-quality versions of products under the same name as the standard versions available elsewhere. They could sell them for cheaper and consumers were none the wiser - or so the theory went, anyway. Obviously people caught on.</p>
]]></description><pubDate>Wed, 16 Sep 2026 04:16:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=49722025</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49722025</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49722025</guid></item><item><title><![CDATA[New comment by _moof in "NTSB issues investigative update on B-767 runway excursion accident in Miami"]]></title><description><![CDATA[
<p>I don't know the specific items that were called out here but I can tell you, as a flight instructor, that the failure to capture the glideslope was already enough to require a go-around. The late flap settings were too. So was the high airspeed. At no point did they have a stabilized approach. There were multiple unequivocal mandatory go-around conditions before they got to the runway.</p>
]]></description><pubDate>Fri, 11 Sep 2026 08:37:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=49655258</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49655258</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49655258</guid></item><item><title><![CDATA[New comment by _moof in "NTSB issues investigative update on B-767 runway excursion accident in Miami"]]></title><description><![CDATA[
<p>Turbofans being slow to spool up is jets 101.</p>
]]></description><pubDate>Fri, 11 Sep 2026 08:30:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=49655201</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49655201</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49655201</guid></item><item><title><![CDATA[New comment by _moof in "Cheap GPS jammers are filling the world with navigation dead zones"]]></title><description><![CDATA[
<p>Time was, if you didn't understand how to use VORs, you couldn't really fly. We used them as primary en route nav, as well as for approaches, for many decades. As a CFI I think most of the confusion around VORs these days comes down to poor or inadequate training.</p>
]]></description><pubDate>Mon, 31 Aug 2026 20:21:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=49514441</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49514441</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49514441</guid></item><item><title><![CDATA[New comment by _moof in "Cheap GPS jammers are filling the world with navigation dead zones"]]></title><description><![CDATA[
<p><i>> sustaining human life</i><p>Not really. Drone ships are very much a thing these days.</p>
]]></description><pubDate>Mon, 31 Aug 2026 20:18:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=49514402</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49514402</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49514402</guid></item><item><title><![CDATA[New comment by _moof in "Black hole singularity is a surface not a point"]]></title><description><![CDATA[
<p>It's unfortunately misleading shorthand for what actually happens: space becomes time<i>like</i>. It doesn't become <i>time</i>. All this means is that once you cross the event horizon, you can only ever move toward the center of the black hole, in the same way that outside of a black hole, you can only ever move toward the future. You might not take a direct route to the center, but no matter which way you move, you will be following a track that ends at the center.<p>The reason this phenomenon has a spooky-sounding name is that it also affects whether two objects can be causally connected. If you can only ever move closer to the center of the black hole, then there are (conceivably) other objects inside the event horizon that you can never have a causal relationship with.<p>But it doesn't mean that space and time literally switch places.</p>
]]></description><pubDate>Tue, 25 Aug 2026 21:43:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=49441092</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49441092</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49441092</guid></item><item><title><![CDATA[New comment by _moof in "Civilian plane crash in New Mexico tied to military GPS blocking"]]></title><description><![CDATA[
<p><i>> If the sky was clear, as the article states, then lack of GPS is not a good enough excuse for a trained pilot to crash into a mountain, unless the cockpit has no windows.</i><p>I have thousands of hours as pilot in command and have worked as a professional pilot.<p>Unlit terrain is invisible at night. The moon was new. They did not see, and could not have seen, the mountains.</p>
]]></description><pubDate>Wed, 05 Aug 2026 21:34:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=49189361</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49189361</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49189361</guid></item><item><title><![CDATA[New comment by _moof in "Civilian plane crash in New Mexico tied to military GPS blocking"]]></title><description><![CDATA[
<p>The "skill issue" is that they chose to press on instead of returning to base. Yes, the jamming was a factor, but making a decision to fly a visual into field surrounded by mountains at night is a bad call.</p>
]]></description><pubDate>Wed, 05 Aug 2026 21:33:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=49189352</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49189352</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49189352</guid></item><item><title><![CDATA[New comment by _moof in "Civilian plane crash in New Mexico tied to military GPS blocking"]]></title><description><![CDATA[
<p>I'm sorry, what? Pilot error is absolutely a factor in contemporary accidents. It's the most common one, in fact, because we've rooted out almost all the other risks.</p>
]]></description><pubDate>Wed, 05 Aug 2026 21:32:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=49189325</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49189325</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49189325</guid></item><item><title><![CDATA[New comment by _moof in "Civilian plane crash in New Mexico tied to military GPS blocking"]]></title><description><![CDATA[
<p>Not true. You also need an accurate altimeter to fly the intermediate segment, as well as the missed approach segment. There are mountains under the obstacle clearance surfaces on both segments. That is why this ILS procedure is explicitly not authorized when the local altimeter setting isn't available.</p>
]]></description><pubDate>Wed, 05 Aug 2026 21:26:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=49189256</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49189256</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49189256</guid></item><item><title><![CDATA[New comment by _moof in "Civilian plane crash in New Mexico tied to military GPS blocking"]]></title><description><![CDATA[
<p>It would not be safe at this airport, and the ILS procedure there explicitly forbids it. In the remarks at the top of the approach plate you'll see "When local altimeter setting not received, procedure NA." (NA = Not Authorized.) Here's the plate: <a href="https://aeronav.faa.gov/d-tpp/2607/06922IL24.PDF" rel="nofollow">https://aeronav.faa.gov/d-tpp/2607/06922IL24.PDF</a><p>The reason you need an accurate altimeter for this ILS is that the obstacle clearance surface for the intermediate segment - the part where you're flying straight and level without a glideslope - lies atop the very mountains these pilots crashed into. Vertical guidance on the missed approach is also barometric, and there are mountains in that direction too.</p>
]]></description><pubDate>Wed, 05 Aug 2026 21:20:10 +0000</pubDate><link>https://news.ycombinator.com/item?id=49189162</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49189162</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49189162</guid></item><item><title><![CDATA[New comment by _moof in "Civilian plane crash in New Mexico tied to military GPS blocking"]]></title><description><![CDATA[
<p>Lack of GPS was one factor here, but poor judgment was the real killer. Flying a visual approach at night into a field surrounded by unlit mountains is suicidal.<p>There's a saying among medevac pilots when it comes to making go/no-go decisions: don't turn one tragedy into five.</p>
]]></description><pubDate>Wed, 05 Aug 2026 21:18:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=49189149</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49189149</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49189149</guid></item><item><title><![CDATA[New comment by _moof in "The Difference Between a Button and a Link"]]></title><description><![CDATA[
<p>I do think cancel is a poor example because it's conceptually very near "go back" - but it doesn't actually mean that. It means "I've changed my mind".<p>Implementing cancel with a URL is an implementation detail. That's one way to do it, but it's far from the only way. Cancel could also be implemented by hiding a UI element, for example.</p>
]]></description><pubDate>Wed, 29 Jul 2026 04:51:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=49093538</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49093538</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49093538</guid></item><item><title><![CDATA[New comment by _moof in "US citizen charged after GrapheneOS phone wipes during airport search"]]></title><description><![CDATA[
<p>Turns out immigration in other countries isn't a cakewalk either.</p>
]]></description><pubDate>Tue, 28 Jul 2026 00:16:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=49077543</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49077543</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49077543</guid></item><item><title><![CDATA[New comment by _moof in "Kill The Cookie Banner"]]></title><description><![CDATA[
<p>And in a truly twisted move, ad tech companies were also using Do Not Track as part of browser fingerprinting.<p>This industry is a paperclip maximizer, and it needs to be dealt with accordingly.</p>
]]></description><pubDate>Mon, 27 Jul 2026 00:20:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=49063763</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49063763</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49063763</guid></item><item><title><![CDATA[New comment by _moof in "Humans haven't stopped evolving"]]></title><description><![CDATA[
<p>I can't find the source now but an idea that really stuck with me is that evolution happens on the margins. If a 0.0001% increase in the height of a giraffe makes it 0.0001% more likely that the giraffe will survive and reproduce, then in 1 million years giraffes as a species will become taller.<p>As for humans: I mean, duh? The selective pressures faced by humans have changed radically in the time we've been around.</p>
]]></description><pubDate>Sun, 26 Jul 2026 05:26:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=49054997</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49054997</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49054997</guid></item><item><title><![CDATA[New comment by _moof in "Humans haven't stopped evolving"]]></title><description><![CDATA[
<p>Because that isn't what evolution does. Evolution is the process whereby traits that make reproduction more likely under selective pressures become more common. There is nothing in that process that necessarily implies a lack of harm to each other or the environment.</p>
]]></description><pubDate>Sun, 26 Jul 2026 05:19:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=49054965</link><dc:creator>_moof</dc:creator><comments>https://news.ycombinator.com/item?id=49054965</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49054965</guid></item></channel></rss>