Mutendei Writes

A Persian scholar finished a single math book in 9th century Baghdad that quietly became the foundation for every line of code running on Earth today. I started reading about him at midnight and could not believe how many things in my daily life trace back to one man. His name was Muhammad ibn Musa al-Khwarizmi. The book is called The Compendious Book on Calculation by Completion and Balancing. Every time you say the word algebra, you are saying his book title. Every time someone says the word algorithm, they are saying his name. Both English words come from him. Both are Latin transliterations of Arabic and of his own identity. The man did not just contribute to mathematics. He named it. Here is the part almost nobody tells you. Al-Khwarizmi was born around 780 CE in Khwarazm, in what is now Uzbekistan. He moved to Baghdad and worked at a research institution called the House of Wisdom, which during the Islamic Golden Age was the single most important center of learning on the planet. The caliph al-Mamun hired the best mathematicians, astronomers, and philosophers from across three continents and put them in one building with one job. Translate, study, and produce new knowledge. Al-Khwarizmi finished his book on algebra around 820 CE. The Arabic title contained the word al-jabr, which referred to one of the two operations he used to solve equations. When the book was translated into Latin in the 12th century, the Latin world did not have a word for what he had built. So they kept his Arabic word. Al-jabr became algebra. The discipline was named after a single Arabic word in the title of a single book by a single man. The deeper insight is what he actually changed about how humans think. Before al-Khwarizmi, mathematical problems were solved geometrically. You drew shapes. You measured them. You compared areas. The Greeks had built an entire mathematical tradition on visual proofs and physical constructions. It was beautiful and limited. You could not solve a problem you could not draw. Al-Khwarizmi did something nobody had done before him at this scale. He said you could solve any problem using abstract symbols and rules. You did not need a shape. You needed a procedure. You moved terms across the equation. You cancelled like terms on both sides. You isolated the unknown. He invented the idea that mathematics is a manipulation of symbols according to rules, not a study of physical figures. That single shift made everything that came afterward possible. Calculus. Differential equations. Linear algebra. Quantum mechanics. None of it works if math is locked inside geometry. He pulled it out. The second thing he did is the one that changed how the world counted forever. He took the Hindu numeral system from Indian mathematics, refined it, and wrote a book introducing it to the Arab world. That system included the concept of zero as a placeholder, and a positional notation where the value of a digit depends on its location. Roman numerals could not do complex calculation. Hindu-Arabic numerals could. When his book on numerals was translated into Latin as Algoritmi de numero Indorum, the word Algoritmi was just the Latin spelling of his own name. Europeans started calling the new method "doing algorism," then "running an algorithm." The word for the most important concept in computer science is literally his name in Latin. The third thing he did is the part that should haunt anyone who works in tech. His method of solving problems was systematic. Step one, do this. Step two, check that. Step three, if condition A, then do X, otherwise do Y. He wrote down procedures that could be followed by anyone, anywhere, who knew how to read. The procedure did not depend on intuition or genius. It worked because the steps worked. That is exactly what an algorithm is. A finite, deterministic procedure for solving a problem. He did not just give us the word. He gave us the entire concept of programming a thousand years before there was anything to program. When Alan Turing built the first abstract model of computation in 1936, when John von Neumann designed the first stored-program computer in 1945, when every engineer at Google, OpenAI, Anthropic, and DeepMind writes code in 2026, they are working in a paradigm that started with one man in Baghdad twelve centuries ago. The strangest part is what happens when you walk into any tech office in San Francisco or Bangalore or Lahore today. Engineers say the words algebra and algorithm hundreds of times a day. They do not know whose name they are saying. Almost nobody can spell al-Khwarizmi correctly on the first try. His original Arabic manuscript is preserved at Oxford. His book on Hindu numerals survives only in Latin translation. The Latin version was the textbook that taught medieval Europe how to count. The man who built the foundation of the AI revolution did not live to see a calculator. He died around 850 CE, a thousand years before the first electric current was sent through a wire. The civilization he built mathematics for collapsed. The library he wrote in burned. His own grave is unmarked. But every algorithm running on every machine on Earth right now still answers to his name.

Young Mongolian girl, mounted archery, Mongolia.

Hiroyuki Sanada agreed to star in Shōgun on one strict condition. He demanded the studio hire Japanese experts for every single department to avoid Hollywood stereotypes. He refused to sign the contract until he was sure the history would be respected.

The Crusader Kingdom of Jerusalem ended in a complete disaster because King Guy de Lusignan and Renaud de Chatillon did exactly what Trump and Netanyahu are doing right now. The Kingdom of Jerusalem did not fall because Islam was stronger than Christendom. It fell because two men — King Guy de Lusignan and Renaud de Chatillon — decided that provocation was a strategy, that the rules didn't apply to them, and that they could drag a fragile coalition into a war of their choosing on a timeline no one else had agreed to. At the Battle of Hattin in 1187, Saladin didn't defeat Jerusalem. Jerusalem defeated itself. Renaud de Chatillon was a maximalist operating on the logic that audacity is its own deterrent, that if you push hard enough — raid the caravans, strike the convoys, threaten the holy cities — the adversary will eventually capitulate rather than escalate. Renaud raided Muslim pilgrimage routes under active truce, attacked caravans Saladin had personally guaranteed safe passage, and treated every ceasefire as a staging period for the next provocation. He was not reckless by accident. He was reckless by doctrine. He believed the enemy's restraint was weakness. Saladin personally beheaded him after Hattin — a gesture he extended to almost no one else — because some men are too dangerous to ransom. Guy de Lusignan was legitimacy-challenged, politically dependent on his maximalist partner, and structurally incapable of restraining him because restraint means losing the coalition that keeps him in power. Guy didn't want to march into the waterless plateau above Tiberias in the July heat. His best commander, Raymond of Tripoli, told him it was a trap — that Saladin had designed the siege of Tiberias specifically to pull the Crusader army into terrain where it would die of thirst before it could fight. Guy knew this. He marched anyway. Because Renaud and the hawkish barons had made backing down politically impossible. The Crusader army did not lose at Hattin. It suffocated, on its feet, in the sun, before Saladin's cavalry closed in. The structure is identical. A dominant power whose strength is real but whose strategic position is more fragile than it appears. A political leader whose survival depends on a partner he cannot control. A partner whose entire identity is built on escalation and who has long since foreclosed the diplomatic exits. A patient adversary who has read the terrain, prepared the trap, and is waiting for the coalition to march into it of its own free will. Hattin was not a battle. It was the terminus of a political logic that had been running for years, and everyone involved could see where it was going except the people with the power to stop it. Jerusalem fell three months later. The Kingdom had hollowed itself out before Saladin needed to strike it. Some defeats are not inflicted. They are chosen, incrementally, by men who confused audacity with strategy and called the result God's will.

For the dinner scene in Sicario (2015) Benicio del Toro cut 90% of his dialogue. The script featured a long speech explaining his revenge but he told Denis Villeneuve that his character did not travel there to talk. He went there to kill.