AI Question about Gemini - Page 1
Forum section: electronics / general

author: mawyatt
author_rank: Super Contributor
timestamp: October 11, 2025, 06:04:58 pm
content: While involved on another thread a link to Gemini was posted about the topic under discussion, here's the link.https://gemini.google.com/share/c2a7524730d0What is the meaning of this?Created with 2.5 Flash October 9, 2025, 04:58 PM Published October 9, 2025, 05:00 PMIs this the date created or related to such?Anyway, we know little about AI and how to utilize such other than asking a question on Google??Best

author: ejeffrey
author_rank: Super Contributor
timestamp: October 11, 2025, 06:15:48 pm
content: I'm not sure what your question is?Someone, rather than answering the question directly or staying silent decided to "ask" the LLM to answer it. Then they couldn't be bothered to either check it's correctness, paraphrase, or even cut and paste the answer so they just left a link to the response.Gemini has definitely improved in mathematic analysis but it's frankly not worth my time to check the derivation of something so simple. So it might be right or wrong, i'm not sure. In my experience Gemini algebraic output is way to verbose, and often adds unnecessary steps even when the result is correct.Also while the Gemini math model has obviously been prompt engineered to provide very detailed description of the algebraic step, it doesn't usually provide a good explanation of what's going on. I.e., to measure the ESR with this approach, the voltage across the DUT and reference resistor give you the absolute value of impedance, but the voltage across both determines the phase to allow you to separate the real (ESR) from the imaginary (capacitive) impedance.In short: a lazy human used.a stochastic parrot and didn't even bother to add anything of their own context. This wasting everyones time and a fair bit of energy.

author: ejeffrey
author_rank: Super Contributor
timestamp: October 11, 2025, 06:16:54 pm
content: Is your question just about the date stamp?That's just the particular LLM used (flash 2.5) and the date it was executed. What's shown there is a cached result, not rerunning the model each time you visit the link.

author: tggzzz
author_rank: Super Contributor
timestamp: October 11, 2025, 07:13:16 pm
content: Commercial LLMs' training sets arecontinuallybeing tweaked. Hence the same input tomorrow can produce completely different outputs.One CEO (IIRC Sam Altman) even apologised for that. Musk only apologises when the tweaks produce insane output like "mechahitler"!Now apply that in the context of life critical machinery (e.g. self driving cars) and be afraid, very afraid.

author: RoGeorge
author_rank: Super Contributor
timestamp: October 11, 2025, 07:55:12 pm
content: Quote from: mawyatt on October 11, 2025, 06:04:58 pmAI is not yet ready to be used in engineering, IMHO. As Nominal Animal said it in 2 words, an AI is aPerfect Impostor. In the sense that it looks like it is correct and knows what it is talking about, except it doesn't!Confident answers may be dead wrong, especially when involving details, like in engineering.In very few words, an AI will agregate words (not knowledge), and will spit other words that are usually found in the vicinity of your question words. If that matches or not reality, is a matter of pure luck. Again, very generic talking, an AI is good at aggregating words, it compresses terrabites of text in a few gigabytes of a model, then decompresses (but with losses of meaning) according to your question.Take AI with a BIG, BIGgrainmountain of salt. My advice is to not use it at all, unless you need some fluffy art project or such, where the accuracy of details is not important. Of course, there are tunings and work in progress to make the AI answers spit trusted material, but don't count of that. Again, there are many other factors at play, and it is a very dynamic teritory, literally changing from one week to another, but mostly it's a phony. There is no reasoning in AI, even if it looks like it knows what is telling.For engineering, it is many times worst than a search in a search engine. The search engine will return links to human written material, with full context and a certain understanding you can weight and judge for yourself, while an AI answer will tend to aggregate all that it was trained with, and return a mash potato. Even more confusing is that sometimes it returns entire correct/quotted paragraphs, while other times will just spit words.The main task an AI does is this: It takes your word, and find what is the most probably word related with that, then run it again and again, until it produces a phrase or a paragraph. Then, there is the "temperature" tuning. All these probabilities about which word to put next are spiked with random noise, so not only that it might be dead wrong, but also inconsistent in the generated answers.AI is an absolute plague, yet most are unaware, and take it as being something that "knows better", which is absolutely not. AI is behaving like an impostor pretending to know what in fact doesn't understand. It only spits related words from a certain domain.I strongly recommend to watch some introductory videos about what AI actually does, and how it works.

author: Analog Kid
author_rank: Super Contributor
timestamp: October 11, 2025, 08:13:11 pm
content: Quote from: RoGeorge on October 11, 2025, 07:55:12 pmI nominate that for the replacement abbreviation for the technology instead of "AI":PI. (Not to be confused with the constant denoted by the Greek letter.)

author: tggzzz
author_rank: Super Contributor
timestamp: October 11, 2025, 08:34:45 pm
content: Quote from: RoGeorge on October 11, 2025, 07:55:12 pmIn fairness, some human beings have developed that behaviour too. When humans assemble words in that way they are termed bullshitters.

author: PlainName
author_rank: Super Contributor
timestamp: October 11, 2025, 08:44:04 pm
content: QuoteNot so much nowadays. Often, one finds the link is to a page written by an LLM.

author: tggzzz
author_rank: Super Contributor
timestamp: October 11, 2025, 08:47:13 pm
content: Quote from: PlainName on October 11, 2025, 08:44:04 pmAnd that page is ingested as valid input by LLMs when they scrape the web. Such incestuous behaviour worries the AI researchers who have a clue about how LLMs work internally.

author: sleemanj
author_rank: Super Contributor
timestamp: October 12, 2025, 01:50:50 am
content: Quote from: mawyatt on October 11, 2025, 06:04:58 pm2.5 Flash is the version of GeminiThe created date is the date the question was asked to Gemini, in your local timezone.The published date is the date the user decided to share it, in your local timezone.