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Clearing the Fog Around AI: What It Really Is (and Isn’t)

  • Writer: Vivek Sakthi
    Vivek Sakthi
  • Sep 5
  • 3 min read

If you’ve scrolled through LinkedIn lately, you’ve probably seen bold claims like:💡 “AI will revolutionize our industry.”💡 “We need an AI strategy.”💡 “AI is coming for our jobs.”


But here’s the real question: what does AI actually mean? Why is it everywhere now? And how do you separate the hype from the real impact?


This post breaks AI down in plain English—no jargon, no mystique—so you’ll finally understand what’s really happening when an AI “talks,” “recommends,” or “predicts.”


The Big Umbrella of AI


At its core, Artificial Intelligence (AI) means getting machines to perform tasks that normally require human intelligence.


  • Old AI (1980s–2010s): Rule-based systems. Example: If account balance < $0 → flag account.

  • Modern AI (2012–present): Machine learning and deep learning—systems that learn from patterns in data rather than only following rules.


Analogy:


  • Old AI = handing a kid a rulebook: “If it has whiskers and a tail, it’s a cat.”

  • Modern AI = showing them 10,000 pictures of cats and dogs until they figure it out themselves.


Machine Learning vs. Deep Learning


🤖 Machine Learning (ML):

  • Systems that learn from past data.

  • Example: Train on 1,000 loan records to predict whether a new applicant will repay.

🧠 Deep Learning (DL):

  • A type of ML using neural networks with many layers (hence “deep”).

  • Example: Identifying cats vs. dogs by analyzing pixels in an image.


Analogy:


  • ML = a math-savvy student memorizing past exam questions.

  • DL = an artist spotting hidden patterns in brushstrokes and styles.


Large Language Models (LLMs): The Engines of Today’s AI


Models like ChatGPT, Claude, and Gemini power the AI revolution.


At their core, LLMs are giant autocomplete machines:


  • They don’t “know” facts like a library.

  • They don’t “think” like humans.

  • They predict the next word (token) based on patterns.


Analogy: Your smartphone keyboard predicts “you” after you type “How are…”. Now imagine it trained on the entire internet.


Key Jargon to Know:


  • Token: A chunk of text (word, part of a word, punctuation).

  • Parameters: Billions of little switches tuned during training.

  • Training: Feeding massive datasets so the model learns word patterns.


Embeddings: The Secret Sauce of Meaning


Embeddings convert words and sentences into numbers (vectors) that represent meaning.


  • “Refund policy” and “return rules” → close in embedding space.

  • Powers semantic search, clustering, and retrieval-augmented generation (RAG).


Analogy: A map. Paris and Lyon are close on a France map; similarly, semantically similar sentences are close in embedding space.


What AI Is Not


Let’s bust a few myths:


❌ AI does not understand like humans.❌ AI does not know truth—it generates patterns.❌ AI is not conscious or magical.❌ AI does not browse the internet live (unless connected).


✅ AI = a probability machine. Useful, but only with the right structure and guardrails.


Analogy: AI is like a very confident intern:


  • Writes fast.

  • Sounds convincing.

  • Sometimes makes things up (hallucinations).

  • Needs supervision.


Real-Life Examples of AI in Action


  • Customer Service: AI chatbots answering FAQs using company docs.

  • Healthcare: Spotting subtle patterns in medical scans.

  • Retail: Personalized product recommendations.

  • Everyday Life: Google Maps traffic predictions, Spotify playlists.


The Bottom Line


AI isn’t magic. It’s math, patterns, and data at scale. The real value lies in knowing what AI can do well, where it struggles, and how to apply it responsibly.


Strip away the hype, and you’ll see AI for what it really is:


👉 A powerful tool.

👉 Not a silver bullet.

👉 And definitely not your new robot overlord.


Read the full book on Kindle: AI That Speaks Human: The Essentials

 
 
 

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