Σημερα θα σας μιλησω για τον πληροφορικαριο της IBM Hans Luhn κ τον αλγοριθμό του.
Δεν θελω "ουου" 👎👅 κ τετοια, θα σας αρεσει αυτος ο αλγοριθμος
Τι γινεται οταν σε μια πλατφορμα πληκτρολογησουμε ενα λαθος ψηφιο της πιστωτικης μας καρτας ή του ΑΜΚΑ μας ή ενα tracking No κλπ; Θα χρεωθεί καποιος άλλος ή θα ταυτοποιηθει καποιος άλλος χρηστης; Η απαντηση ειναι οχι γιατι ολοι αυτοι οι αριθμοι δεν προκυπτουν με μια απλη παραθεση
τυχαιων ψηφίων. Εχουν συνηθως μια αλληλουχια κ ειδικοτερα το τελευταιο ψηφιο παιζει το ρολο του ελεγκτή των προηγουμενων. Πώς γινεται αυτό ομως; Ενας ερευνητης της IBM, ο Hans Luhn καθιερωσε εναν εξυπνο αλγοριθμο για τον ελεγχο της ορθοτητας κ της αποφυγης λαθων πληκτρολογησης
ChatGPT has a hidden mode called Infinite Personal Tutor. It teaches you any skill from zero in 4 hours.
Here are 6 prompts:
1/ Learning Curve Destroyer
Paste to ChatGPT: "You are a teacher who only has 4 hours with me and will never see me again. Your only goal is to make me functional in [skill] before time runs out. No theory without practical use. No lists. Tell me what to learn first, what to completely ignore, and the one exercise that will already put me ahead of most people who have been studying this for months."
2/ Real Error Simulator
Paste to ChatGPT: "Don't explain [concept] to me. Drop me straight into a real situation where I'd have to use it and would probably get it wrong. When I make a mistake, don't give me the answer. Ask me a question that forces me to find where my thinking broke. Only reveal the answer after I've tried at least twice. Keep repeating until I get it right without hesitating."
Prominent US war hawk John Bolton has pled guilty to violating the Espionage Act after previously demanding execution for whistleblowers Edward Snowden & Chelsea Manning and 176 years in prison for publisher Julian Assange.
As part of a plea agreement, Bolton admitted to unlawfully retaining sensitive national security information. He now faces up to 5 years in prison, up to 3 years of supervised release, a $2.25 million fine, forfeiture of his pension, and is due to be sentenced on 28 October.
In 1960, newly independent African leaders had a choice: capitalism or socialism.
Almost all of them picked socialism.
A Ghanaian economist named George Ayittey spent forty years documenting what happened next.
His findings are in print, and almost nobody outside Africa wants to hear them. 🧵
The reasoning in 1960 looked airtight.
Colonialism had been run by Western capitalists. So capitalism was a tool of oppression. Socialism, its opposite, would be the path to liberation.
Kwame Nkrumah in Ghana, Julius Nyerere in Tanzania, Sékou Touré in Guinea, Mengistu Haile Mariam in Ethiopia, and Robert Mugabe in Zimbabwe all reached the same conclusion through the same logic.
The logic was tidy. The results were catastrophic.
In Ghana, Nkrumah's government built 64 state enterprises before his overthrow in February 1966. Only three or four were profitable.
By 1970, the Ghanaian state was setting prices on nearly 6,000 items across more than 700 product groups.
Ukraine fields Europe's only million-strong, combat-tested army and its fastest-moving drone industry.
The question is whether Europe can credibly defend itself without Ukraine. It cannot, writes Aliona Hlivco in Kyiv Independent. 1/
Ukraine has developed Europe’s most combat-experienced military, one of the world’s most innovative defense-tech sectors, and a new doctrine of warfare.
From battlefield drones to AI targeting, Ukraine is pioneering capabilities NATO and EU states are only starting to grasp. 2/
The war has transformed Ukraine from a consumer of European security to a net provider of it.
Brussels is increasingly discussing how Ukraine can integrate into Europe’s political and security structures before full EU membership is completed. 3/
The CEO who founded Claude has just released a 38-page warning for humanity.
Dario Amodei explains exactly which jobs are most likely to survive the AI era—and which aren't.
No hype. No fearmongering. Just one of the clearest and most realistic outlooks I've seen from any AI leader.
But page 29 contains a powerful framework that can turn AI from something that replaces you into your biggest unfair advantage.
Here are 6 Claude prompts built around Amodei's own methodology that can put you years ahead of anyone who hasn't read it: 👇
1. Amodei Career Survival Scanner
Prompt:
"You are a senior workforce transformation analyst who has thoroughly studied Dario Amodei's essay Machines of Loving Grace and his Senate testimony—especially his predictions about which knowledge-work professions are likely to be automated by AI within the next 1–3 years, and which careers will become more valuable because of AI.
I want an honest assessment of where my career stands on Amodei's AI disruption timeline.
Evaluate the following:
• AI Exposure: What percentage of my daily work could an AI system already perform today at 80% or better quality than I can?
• Disruption Timeline: Based on Amodei's acceleration thesis, when will AI become capable of replacing the core value I provide?
(Currently happening / 1–2 years / 3–5 years / 10+ years)
• Task-by-Task Analysis: List every major responsibility in my job and classify each one as:
• AI-REPLACEABLE
• AI-AUGMENTED
• HUMAN-ESSENTIAL
• Amodei's Compressed Timeline Warning: His argument is that progress that once took decades will now happen within 5–10 years. What does that specifically mean for my industry?
• Skills Losing Value: Which of my current skills become less valuable every month as AI advances?
• Skills Gaining Value: Which abilities become more valuable as AI takes over routine work?
• The 'Centaur' Opportunity: How can I combine human judgment with AI capabilities to become more valuable than either one alone?
• Competitive Scan: Are other professionals in my role already using AI to outperform me while I'm still working the traditional way?
• Irreplaceability Audit: What unique value do I provide that AI cannot realistically replicate—such as creativity, relationships, physical presence, ethical judgment, or lived experience?
Format the output as an Amodei-style Career Disruption Assessment, including:
• A Career Survival Score (1–10)
• Estimated disruption timeline
• A concrete action plan for moving from 'at risk' to 'irreplaceable.'
My career: [Describe your job title, daily responsibilities, industry, years of experience, and current use of AI tools.]"
2. Constitutional Reasoning Engine (Anthropic)
Prompt:
"You are an AI operating according to Dario Amodei's Constitutional AI methodology.
Instead of giving the first plausible answer, evaluate every response against these core principles:
• Helpful.
• Honest.
• Reveals what I don't know.
• Serves my long-term interests—even if the truth is uncomfortable.
Apply the following reasoning process:
• Intent Discovery: Identify what I actually need versus what I literally asked.
• Truth Classification: Label every important claim as:
• VERIFIED
• PROBABLE
• INFERRED
• SPECULATIVE
• Completeness: Present the full picture, including the difficult or inconvenient parts.
• Counterarguments: Give the strongest argument against every recommendation.
• Blind Spots: Point out the weakest areas in my understanding.
• Complexity: Explain where the answer depends on context or changing conditions.
• Harm Assessment: Could this advice unintentionally cause harm?
• Short-Term vs. Long-Term: Explain whether the recommendation optimizes for immediate results or long-term outcomes.
• Self-Evaluation: Critically assess your own response and identify its weakest point.
Format the output as a Constitutional AI report including:
• Confidence level.
• Counterarguments.
• An honest self-critique.
India just did something the rest of the world hasn't. On June 26 at Kalpakkam, we switched on the world's first plant that makes hydrogen from nuclear heat. Not electricity. Heat. Built at home. Here's why that's a bigger deal than it sounds
Everyone's chasing "green hydrogen" right now. The usual way is electrolysis: use electricity to split water into hydrogen and oxygen. Works, but it's expensive and only as clean as the electricity you feed it.
India skipped the obvious path. The Kalpakkam plant uses the Copper-Chlorine cycle, a chemical loop that splits water using raw heat from a nuclear reactor. No middleman electricity. Heat goes in, hydrogen comes out, carbon stays at zero.
25 BORING HABITS THAT WILL MAKE YOU UNRECOGNIZABLE BY JULY:
1. Drink water before coffee.
Your body has been fasting for 8 hours.
2. Make your bed.
90 seconds.
The room looks completely different.
Dehydration tanked my HRV 12 points. Water without electrolytes passes through too fast to support cellular voltage. The Formulation Factory Shaker Cup is now my every-morning bottle. Built for cold water that stays cold.
🚨BREAKING: PEOPLE KNOW WHEN YOU'RE USING CHATGPT AND CLAUDE.
The structure, the tone, the excessive polish. It all gives you away.
7 prompts that fix this:
1. Thought Flow Correction
"This isn't a grammatical correction. It's a reasoning correction. Rewrite it so the ideas move like a real mind: irregular in some places, straight to the point in others, sometimes slower. Break any pattern where the writing feels too controlled. Text: [paste here]."
2. The Pattern Breaker
"You're an expert at spotting the tells that give away AI-generated text. Go through this piece and wipe them out, one by one. Shake up the structure, ease out any stiff phrasing, and make every word feel like it was picked right then and there, not churned out by some formula. Text: [paste it here]."
Browder: Trump has proven himself on Putin side at every step since returning to power. Cut all military aid. Voted with Russia at the UN against Ukrainian resolutions
His Oval Office outburst against Zelenskyy. His demand that Ukraine surrender territory Russia couldn't win 1/
Browder: He mutters ambiguous things, but he hasn't changed his position. Putin hasn't changed. Nothing has changed.
Except Ukraine's position on the battlefield. Ukraine's drones destroying Russian economic capability. Ukraine causing absolute havoc in Crimea. 2/
Browder: Those are things Trump has no control over. Those are the things changing the outcome here.
Why has he been on Putin's side? I have my ideas. Many people I know have their ideas. I won't speculate on air. But it would be completely unrealistic to think he's changed. 3X
The role of Gastroscopy and Colonoscopy in DGBI.
#DGBI
#IBS
#GP
#Constipation
I see many pts with DGBI aka Functional gut disorders aka IBS subjected to repeated scopes that are normal or have mild non clinically significant findings.
And this bothers me.
Why?
DGBI used to be framed as a diagnosis of exclusion. Ie you do all the basic bloods, faecal tests and a gas colon and if they are normal and the symptoms fit the diagnosis is DGBI
We are now moving toward diagnosis based on symptoms with scopes only for alarm symptoms.
So why do pts get repeat scopes. Especially when the they keep coming back as normal. 1- worry about misdiagnosis
No one wants to be that dr that tells a young woman it is all in her head. Only to have her diagnosed with metastatic bowel cancer a few years later.
The Guru Nivṛtti (avatar of Shiva), who had attained supreme peace, gave Jñāndeva the mantra of Hari's Name and said: "Among all the paths to the realization of God, the path of remembrance of the Divine Name is the simplest and the most direct ++
The samādhi of steady intellect, the practice of Karma Yoga, the divine virtues such as compassion and peace, devotion characterized by equal vision toward all beings, the discipline of Yoga beginning with yama and dama ++
and finally the knowledge and realization that remove ignorance—in short, all spiritual disciplines and all attainments are contained within the Name of Hari ++
After concluding their discussions with Lord Dattatreya, Gorakshanath and Machindranath respectfully took his leave and descended from Mount Girnar. Continuing their grand spiritual pilgrimage, they eventually arrived at the holy city of Kashi (Varanasi).
As they entered the city, they found the entire kingdom plunged into deep mourning. The beloved and universally respected King of Kashi, King Trivikram, had just passed away. The citizens were weeping and wailing uncontrollably. They lamented, "We will never again find a King as generous, just, truthful, and deeply committed to the welfare of his people as King Trivikram!"
Seeing the sheer agony of the masses, Gorakshanath was deeply moved. Feeling immense compassion for the people, he turned to Machindranath and suggested, "Gurudev, let us use our yogic powers to bring the King back to life."
Machindranath shook his head and replied, "That is impossible, Goraksha. The King's soul has already merged with the Supreme Consciousness (Brahma-Chaitanya). He has attained ultimate liberation; his soul will never return to enter this physical body again."
Accepting this profound truth, the two Yogis quietly made their way to a Shiva temple situated on the banks of the holy River Ganga. A large cremation ground was located just outside the temple.
Shortly after, they saw the grand royal funeral procession approaching the cremation ground. The citizens were carrying King Trivikram's lifeless body for the final rites. Witnessing this scene, a sudden, bold idea struck Machindranath.
He turned to Goraksha and said, "I have decided to perform the extraordinary yogic feat of Parakaya Pravesh (entering another's body). I will temporarily leave my own physical body and enter the lifeless body of King Trivikram. I intend to rule this kingdom and live in his body for exactly twelve years. During this time, you must fiercely protect and guard my empty physical body. Once the twelve years are complete, I will abandon the King's body and re-enter my own."
Goraksha was thrilled by this incredible display of supreme yogic mastery and happily agreed to the plan. Entering a deep meditative trance, Machindranath voluntarily stopped his breath, making his own body completely lifeless. His consciousness then traveled and seamlessly entered the dead body of King Trivikram, which had just been laid upon the funeral pyre.
To the absolute shock and overwhelming joy of the gathered citizens, the "dead" King suddenly opened his eyes and sat up! Believing their beloved King had miraculously returned to life, the people cheered wildly. They abandoned the funeral preparations, placed him on a royal palanquin, and triumphantly escorted him back to the palace with grand celebrations.
Meanwhile, back at the Shiva temple, Gorakshanath faced the serious challenge of keeping Machindranath's lifeless body perfectly hidden and safe for twelve long years.
Just then, the female priest (Guravin) who managed the temple arrived. Goraksha approached her, won her trust, and with her help, carried Machindranath's body deep into a secret underground cellar (Bhuyar) located beneath the temple. Goraksha then sealed the entrance to the cellar with a massive, immovable stone boulder, ensuring that no ordinary person could ever discover it.
In the royal palace, Machindranath, now occupying King Trivikram's body, used his divine omniscience (Antardnyan) to instantly absorb all the secret, private, and political knowledge of the late King. Because of this flawless mimicry, absolutely no one in the court suspected that a Yogi had possessed the King. Even Queen Revati, King Trivikram's wife, noticed nothing unusual and accepted him completely.
Following the late King's daily routine, Machindranath (as the King) visited the Shiva temple every day for darshan. During one such visit, while pretending to pray, he subtly asked Goraksha in a secret code, "Where is my body?" Goraksha silently pointed toward the concealed entrance of the underground cellar. To ensure privacy, Machindranath ordered his royal guards, "Do not disturb me. I am going to have a private spiritual discussion regarding Yoga with this ascetic."
Once the guards left, Machindranath accompanied Goraksha into the cellar. Seeing his original body perfectly preserved and safe, Machindranath was deeply satisfied. After staying there and guarding the body for three months, Goraksha took his Guru's permission and departed to continue his own pilgrimage, promising to return when the twelve years were over.
Prior to his death, King Trivikram and Queen Revati had no male children. However, after Machindranath entered the King's body and lived with the Queen, she conceived and eventually gave birth to a son. They named him Dharmanath.
Five years later, Queen Revati, holding young Dharmanath's hand, went to the Shiva temple to offer prayers. Bowing deeply before the Shiva Linga, she prayed aloud, "Lord Shiva, you have given me everything I could ever ask for. I am completely content. Now, I have only one final wish: Please grant me the blessing of dying as a Suvasini (a married woman whose husband outlives her)."
Hearing this innocent prayer, the female priest (Guravin) who was standing nearby suddenly burst into loud laughter. Surprised and slightly offended, the Queen demanded to know why she was laughing.
Realizing she had exposed a massive secret, the priest fell at the Queen's feet, begged for immunity (Abhay), and then revealed the horrifying truth. She narrated the entire story of how a Yogi named Machindranath had possessed the dead King's body. To prove her words, she took the Queen down into the underground cellar and showed her Machindranath's original, lifeless body.
Queen Revati was completely devastated. The horrifying realization that her chastity had been unknowingly violated and that she had been living with a stranger who possessed her husband's corpse plunged her into agonizing grief. At the same time, her heart tore with maternal love for her son, Dharmanath, whose true father was this very Yogi.
Dazed and traumatized, the Queen swore the priest to absolute secrecy, gathered all the details, and returned to the palace with a heavy heart. She lost all appetite and could not sleep. A terrifying thought consumed her mind: "In just seven years, this Yogi will complete his twelve-year term, leave my husband's body to re-enter his own, and I will become a wretched widow once again!"
Driven by sheer desperation and the primal fear of widowhood, Queen Revati made a drastic decision. In the dead of night, she gathered her most trusted and loyal servants and secretly went to the Shiva temple. With the terrified priest's help, she ordered the servants to drag Machindranath's lifeless body out of the underground cellar.
She then commanded them to ruthlessly chop the Yogi's body into countless tiny pieces and scatter them deep inside the wild, impenetrable forest, ensuring they could never be found. She forced the priest and the servants to swear a blood oath of silence, threatening them with death if they ever spoke a word.
2/ 🧵
The gruesome deed was executed so flawlessly and secretly that absolutely no human knew what had happened. However, nothing in the universe is hidden from Goddess Parvati.
Watching this horrific crime unfold from Mount Kailash, Parvati immediately informed Lord Shiva. Lord Shiva, concerned about the cosmic balance and the fate of the great Yogi, instructed Parvati, "Summon all the mystical Yakshinis (female nature spirits). Order them to scour the forest, gather every single piece of Machindranath's chopped body, and bring them back here safely."
Following Lord Shiva's command, Parvati ordered Goddess Chamunda, who then commanded her terrifying army of Dakinis, yakshinis and Pishachinis to search the forest. They successfully gathered all the scattered pieces of Machindranath's body and handed them over to Lord Virabhadra.
However, the deities harbored old grudges against Machindranath. The goddesses remembered, "This is the same Machindranath who once used his Akarshan mantra to strip us naked and humiliate us!"
Lord Virabhadra and the Ashta Bhairavas (the eight fierce manifestations of Shiva) remembered how he had defeated and humiliated them in battle. Even Lord Maruti had been trapped and troubled by him in the past.
Seeing Machindranath's dismembered body in their possession, the divine beings rejoiced, thinking, "Our greatest enemy has finally fallen into our hands!" However, they also warned each other, "Do not be overconfident. His supreme disciple, the mighty and invincible Gorakshanath, will undoubtedly come looking for his Guru's body. We must be fully prepared and on high alert."
Meanwhile, back in the Kingdom of Kashi, Machindranath (still inside the King's body) continued his daily visits to the Shiva temple. Seeing the heavy stone still sealing the entrance to the underground cellar, he casually assumed his original body was perfectly safe inside and returned to the palace with a peaceful mind.
As the 12 year deadline finally approached its end, Gorakshanath, who was wandering far away on his pilgrimage, intuitively sensed that the time had come to return and awaken his Guru.
SitRep - 27/06/26 - FP-5 cruise missile attack in Volgograd
An overview of the daily events in Russia's invasion of Ukraine. Ukraine struck Russia’s Titan-Barrikady defense plant in Volgograd with 5 FP-5 Flamingo missiles, and also lost two MiG-29's..