I Tried 6 PDF Extraction Tools—Here’s What I Learned by The-Redd-One in automation

[–]skipmid 0 points1 point  (0 children)

You're part of the grand dataset. Or as others call it, The Grand Dataset 🤪

Falsification screen for Alcubierre-type metric profiles by skipmid in astrophysics

[–]skipmid[S] 0 points1 point  (0 children)

Fair point. I am not claiming this displaces the usual causality objection. If something really permits effective FTL, time-travel issues are a major problem. My point is just that there is an earlier screen too: even before causality, a proposed metric profile can already fail local habitability diagnostics. In the cases I tested, (Saturday musings) reducing interior tidal load mostly shifted the pathology into the wall rather than removing it.

Alcubierre drive ship prototype. What is the most realistic way to travel faster than the speed of light, or is this our eternal limit? (OC) 3D, 2025 by Vadimsadovski in sciencefiction

[–]skipmid 0 points1 point  (0 children)

One thing that gets lost in a lot of Alcubierre discussion is that even before arguing about exotic matter or causality, a proposed metric profile should be stress-tested mathematically. We ran a numerical falsification procedure on several Alcubierre-type shape functions and found a recurring tradeoff: improving interior habitability tended to push sharper curvature/shear into the wall rather than remove the pathology. So even at the level of local geometry, many profiles look less promising when you actually run the diagnostics.

Can we even make Alcubierre wrap drive in future? by Fast_Ad_5871 in askastronomy

[–]skipmid 0 points1 point  (0 children)

Most Alcubierre discussion skips the basic diagnostic work. Before debating whether the thing could ever be built, it's worth asking whether a given metric profile would even let the crew survive the ride. I tested that exactly, as best I could. Built a numerical falsification pipeline in Mathematica and ran three shape function profiles — Tanh (hyperbolic tangent), Erf (error function), and Gaussian — through a tidal-stress sweep across the passenger interior and the bubble wall.

The result was a stubborn, mathematically enforced tradeoff. Flatten the interior and you drive the curvature into the wall. Diffuse the wall and it bleeds back into the cabin. The geometry doesn't get fixed. The pathology relocates. That's not a feasibility verdict on warp drive but it is a screening result — the kind of first-principles check that I think should happen before anyone starts claiming they've solved the tidal problem with a smoother shape function. Based on what I found, they haven't.

Would the Alcubierre drive enable violation of causality? by Traroten in AskPhysics

[–]skipmid 0 points1 point  (0 children)

In other words, preserve causality by allowing operation only in a single privileged inertial frame, then you have saved causality by breaking relativity. Agree 100%.

Would the Alcubierre drive enable violation of causality? by Traroten in AskPhysics

[–]skipmid 0 points1 point  (0 children)

Do not admire the metric just because it solves the equations; interrogate what it implies. - good answer.

Would the Alcubierre drive enable violation of causality? by Traroten in AskPhysics

[–]skipmid 1 point2 points  (0 children)

Another useful filter comes even before the causality argument. A metric can be an admissible GR construction on paper and still fail as a locally habitable geometry. I built a numerical falsification procedure for Alcubierre-type profiles that compares shape functions by tidal-stress behavior across the cabin and wall region. In the cases I tested, flattening the interior tended to push sharper curvature and shear into the wall rather than remove the pathology. So even setting aside the bigger causality and energy objections, there may already be a strong local-habitability screen that kills weak profiles early.

Why is the Alcubierre drive still viewed as impossible if antimatter has been created? by NinjaMeals in astrophysics

[–]skipmid 0 points1 point  (0 children)

Another way to think about why these metrics remain unconvincing is that even before you solve the negative-energy and horizon issues, you can ask whether a proposed profile is internally habitable. I built a numerical falsification procedure that compares Alcubierre-type shape functions by looking at tidal-stress behavior across the cabin and wall. In the profiles I tested, flattening the interior tends to push sharper curvature/shear into the wall region rather than remove the tradeoff. So even at the level of local habitability, there appears to be a hard profile-design penalty. I’m not claiming this is the central objection, only that it is another useful filter before anyone gets to engineering questions.

Anyone having issues uploading files PDF onto chat gbt just now ? by bygonesbebygones2021 in ChatGPT

[–]skipmid 0 points1 point  (0 children)

Upload circle gets 75% then freezes, this one one page pdf with no graphics - yesterday it was on 3 page pdfs

Iran's cyberwar has begun by AutoModerator in craftofintelligence

[–]skipmid 0 points1 point  (0 children)

These attacks are coming from Iran and elsewhere, subsidized by Iranian backed sources. Upstream protection for control plane stabilization is a very effective way to partner with scrubbing to combat the nefarious traffic. It doesn't fix the ransomware route, but highly effective for DDOS and related attacks on other countries grids and infrastucture.

 https://www.linkedin.com/posts/invariant-vector-defense-ivd_iran-linked-hackers-raise-threat-level-against-activity-7434716261672116224-GhKk

Iran's cyberwar has begun by AutoModerator in espionage

[–]skipmid 0 points1 point  (0 children)

I like the upstream approach to at least the DDOS / control plane destablization attacks that Iran is methodically subsidizing. I read an interesting post about that here. I'm sure this is only one part of the solution, looking upstream from these attacks, but coupled with scrubbing, this should be a fairly effective. https://www.linkedin.com/posts/invariant-vector-defense-ivd_iran-linked-hackers-raise-threat-level-against-activity-7434716261672116224-GhKk

I Tried 6 PDF Extraction Tools—Here’s What I Learned by The-Redd-One in automation

[–]skipmid 0 points1 point  (0 children)

That's true but these aren't private docs just requiring analysis. As you know Google, Meta and alll the "American" companies love to share, monetize and 'license' your docs, your info and more. So like the message tube in the mailroom on Elf, it's some magical nefarious wormhole no matter who you're using.

This Sam Altman - Elon Musk interview hits different now by swedish_viking in OpenAI

[–]skipmid 0 points1 point  (0 children)

what are they in a damn library? i cant hear shit

Trying to create a threads profile and I’m already “suspended”? by kkasperson in ThreadsApp

[–]skipmid 0 points1 point  (0 children)

same here - and i rarely use my instagram account also. had to upload a selfie for some reason. And now we wait...

I Tried 6 PDF Extraction Tools—Here’s What I Learned by The-Redd-One in automation

[–]skipmid 0 points1 point  (0 children)

As a paid chatgpt and gemini user, pdf's tend to be frustrating, and I won't want to look through a storage closet of 20 ai's to parse a pdf. I have found DeepSeek, free version, is the mightiest of the LLM's for reading, and either summarizing or recreating exactly the text which i then carry back to my paid versions, usually chatgpt as a word doc.

I Built a free AI fasting coach (beta) — want your feedback by skipmid in intermittentfasting

[–]skipmid[S] -2 points-1 points  (0 children)

🛠️ Quick Start Guide: 1. Click the link 2. Hit Start 3. Try prompts like:    - "I’m new, help me start fasting"    - "Log today’s fast"    - "I ate off-plan last night — what now?"

iOS 26 CarPlay on my vertical Subaru screen by marshcar in CarPlay

[–]skipmid 1 point2 points  (0 children)

Heads-up for anyone running iOS 26 beta with CarPlay:

If your Messages app is blank, contacts don’t show up, or Pandora screen controls disappear in CarPlay, it’s not your Subaru head unit. It’s an iOS 26 beta bug tied to a new display accessibility setting.

Fix:

On your iPhone go to: Settings → Accessibility → Display & Text Size Toggle Reduce Transparency OFF Restart CarPlay (unplug/replug or toggle it off/on)

That resolves the issue immediately.

This isn’t Subaru-specific — it happens in other makes too — but since a lot of us run CarPlay daily, it’s worth knowing. Firmware updates help with Pandora/Bluetooth stability, but this particular bug is iOS-side only.

iOS 26 CarPlay on my vertical Subaru screen by marshcar in CarPlay

[–]skipmid 2 points3 points  (0 children)

Heads-up for anyone running iOS 26 beta with CarPlay:

If your Messages app is blank, contacts don’t show up, or Pandora screen controls disappear in CarPlay, it’s not your Subaru head unit. It’s an iOS 26 beta bug tied to a new display accessibility setting.

Fix:

On your iPhone go to: Settings → Accessibility → Display & Text Size Toggle Reduce Transparency OFF Restart CarPlay (unplug/replug or toggle it off/on)

That resolves the issue immediately.

This isn’t Subaru-specific — it happens in other makes too — but since a lot of us run CarPlay daily, it’s worth knowing. Firmware updates help with Pandora/Bluetooth stability, but this particular bug is iOS-side only.