Arizona Looking to Dump Metric Signage on I-19

[Scott5114]

mmHg is clearly metric.

It uses a metric unit, but the official SI unit of pressure is the bar (which equals air pressure at sea level). Meteorology typically uses mbars for all air-pressure readings on the back end, and only translates them to inHg when communicating with the general public.

[kphoger]

Healthcare is (usually) metric ... but uses English for pressures (mmHg) ...

mmHg is clearly metric.

It uses a metric unit, but the official SI unit of pressure is the bar (which equals air pressure at sea level).

So actually, he was incorrect on two counts:

(1)  mmHg is a metric unit, therefore its use is not an exception to the rule of using metric.  (Note that he did not claim it was an SI unit.)

(2)  mmHg is not the English Customary unit for pressure.  Imperial uses psi.

[hotdogPi]

mmHg is clearly metric.

It uses a metric unit, but the official SI unit of pressure is the bar (which equals air pressure at sea level). Meteorology typically uses mbars for all air-pressure readings on the back end, and only translates them to inHg when communicating with the general public.

I seem to remember the SI unit being the pascal, defined as 1 kg/(m·s²). One bar is defined as exactly 100,000 pascals (which still works with SI because it's a power of 10); air pressure at sea level is pretty close to this (but not exact) at 101,325 pascals.

[kkt]

Healthcare is (usually) metric ... but uses English for pressures (mmHg) ...

mmHg is clearly metric.

It uses a metric unit, but the official SI unit of pressure is the bar (which equals air pressure at sea level).

So actually, he was incorrect on two counts:

(1)  mmHg is a metric unit, therefore its use is not an exception to the rule of using metric.  (Note that he did not claim it was an SI unit.)

(2)  mmHg is not the English Customary unit for pressure.  Imperial uses psi.

Inches of mercury used to be used for weather reporting.

[GaryV]

Inches of mercury used to be used for weather reporting

Weather.com still does. And I'm sure that's not the only place I've seen it.

[kphoger]

Meteorology typically uses mbars for all air-pressure readings on the back end, and only translates them to inHg when communicating with the general public.

mmHg is not the English Customary unit for pressure.  Imperial uses psi.

Inches of mercury used to be used for weather reporting.

Yes, as Scott had already mentioned.  But, of course, this does not change the fact that mmHg is not the Customary unit.

[US 395]

In a fictional world, 17 and 19 would be one long interstate.

In a fictional world, it could've been Interstate 15. If you go north from the end of Interstate 17 in Flagstaff, you'd eventually run into 15 and SLC. The way 15 goes south from there (more like southwest), that could've been an Interstate 11. Still fits the overall grid.🤷🏻�♂️

[The Ghostbuster]

In a non-fictional world, we have this: https://www.aaroads.com/forum/index.php?board=20.0.

[Max Rockatansky]

In a non-fictional world, we have this: https://www.aaroads.com/forum/index.php?board=20.0.

If we are living in a simulation doesn't that mean what we call the "real world" is actually also fictional? 

[kkt]

In a fictional world, 17 and 19 would be one long interstate.

In a fictional world, it could've been Interstate 15. If you go north from the end of Interstate 17 in Flagstaff, you'd eventually run into 15 and SLC. The way 15 goes south from there (more like southwest), that could've been an Interstate 11. Still fits the overall grid.🤷🏻�♂️

If you go north past the end of I-17 you run into very rough, sparsely populated country, and then Lake Powell.  The need for interstates is not a perfect grid - Salt Lake City to Las Vegas to L.A. is a diagonal, but it is heavily used.

If we are living in a simulation doesn't that mean what we call the "real world" is actually also fictional? 

Are you getting all Matrixy on us?

[Max Rockatansky]

Nah, I had the idea of some weird alien kid playing a hyper detailed version of The Sims in mind.

[ElishaGOtis]

I made a couple of AI songs about traveling on I-19

https://suno.com/song/3cf3fb72-559e-47fa-92d9-35c320cae79a

https://suno.com/song/76bb85ee-8cd5-4e1d-9ee2-049c44a22c66

These have the same lyrics (made using the Grok AI program) but I'd thought I'd share them.

[The Ghostbuster]

I understand songs about US 66, but songs about Interstate 19? I don't think that's much to write home about.

[Max Rockatansky]

Anyone else want to rearm the Titan II missile in Green Valley and send it to whatever AI company those songs came from?

[ElishaGOtis]

Anyone else want to rearm the Titan II missile in Green Valley and send it to whatever AI company those songs came from?

Grok (lyrics) and Suno (music)   

[LilianaUwU]

Can we ban AI slop from the forum?

[ElishaGOtis]

Can we ban AI slop from the forum?

I'd be willing to support a ban anything AI that presents itself as being real or doesn't add to the conversation greatly.

[Rothman]

Can we ban AI slop from the forum?

Would love for a certain user's AI-generated posts to become fewer in number...

[kphoger]

I really wanted to copy-and-paste some AI slop into the conversation here, but for some reason I'm having trouble getting AI to tell me anything about itself.

[hotdogPi]

No, WolframAlpha does not hallucinate in the same way LLMs do, and here's why:

🔍 What Hallucination Means in AI
In language models (LLMs) like ChatGPT, hallucination refers to confidently generating incorrect or fabricated information — e.g., making up a fake scientific study, misquoting a law, or inventing a historical event.

🤖 WolframAlpha vs. LLMs

Feature	WolframAlpha	LLMs (like GPT)
Core approach	Rule-based computation engine	Predictive, probabilistic text generation
Data source	Curated, structured databases	Trained on large, diverse internet-scale text corpora
Likelihood of hallucination	Very low	Moderate to high
Behavior with unknowns	Will often say "I don't know" or "not computable"	May guess or fabricate a plausible-sounding answer

✅ Why WolframAlpha Rarely Hallucinates

• It doesn't guess — if it can't compute or retrieve something from its curated database, it just says so.
• It operates on symbolic computation, not statistical language modeling.
• It's built to solve exact math, physics, chemistry, and factual queries from structured knowledge.

⚠️ But It's Not Infallible
WolframAlpha can:

• Return outdated or limited data depending on its knowledge base.
• Misinterpret ambiguous queries.
• Be constrained by scope — if it wasn't programmed or curated for something, it won't handle it well.

💡 In Summary:

• WolframAlpha ≠ LLM: It's a deterministic computation engine, not a predictive language model.
• Very low hallucination risk — but not immune to misunderstanding or outdated info.
• For precise, math-heavy or structured data queries, WolframAlpha tends to be more reliable.

[LilianaUwU]

Can we ban AI slop from the forum?

I'd be willing to support a ban anything AI that presents itself as being real or doesn't add to the conversation greatly.

That's not enough.

[TheCatalyst31]

Can we ban AI slop from the forum?

If nothing else, at least ban the AI service that occasionally becomes obsessed with white supremacist ideology because its owner decided to tinker with it.

[kphoger]

If nothing else, at least ban the AI service that occasionally becomes obsessed with white supremacist ideology because its owner decided to tinker with it.

AI is a racist ass clown

[Max Rockatansky]

Can we ban AI slop from the forum?

I'd be willing to support a ban anything AI that presents itself as being real or doesn't add to the conversation greatly.

That's not enough.

Off forum it has been banned from my groups I manage on Facebook.  Roadgeekery and I believe even Freewayjim have banned it also.  I tend to think "algorithms branded as AI" don't really have a place in the core the road hobby.  But that is just my opinion.

[TheCatalyst31]

If nothing else, at least ban the AI service that occasionally becomes obsessed with white supremacist ideology because its owner decided to tinker with it.

AI is a racist ass clown

I was wondering why the word filter didn't get that, but apparently you have to leave out the space to get mezzanine.