Source: @ordax on LinkedIn >>
10 YouTube channels for learning AI:
🎓 1) Andrej Karpathy – Deep yet accessible lectures on deep learning, LLMs, and an intro course on neural networks. https://t.co/JGq4zaAmif
📊 2) 3Blue1Brown – Stunning visualizations that make abstract mathematical concepts intuitive. https://t.co/SScA6QqnEc
🎙️ 3) Lex Fridman – In-depth conversations with AI leaders, offering a broader perspective on the field. https://t.co/JUeEk8A7ez
🤖 4) Machine Learning Street Talk – Technical deep dives and discussions with top AI researchers. https://t.co/8yNh0HpOIz
📚 5) StatQuest with Joshua Starmer PhD – Beginner-friendly explainers on machine learning and statistics. https://t.co/luJ72plFyx
🍉 6) Serrano Academy (Luis Serrano) – Clear and accessible content on ML, deep learning, and AI advancements.https://https://t.co/hzXa2Lsd2i
💻 7) Jeremy Howard – Practical deep learning courses and AI-powered web app tutorials. https://t.co/7dm26tsZK6
🛠️ 8) Hamel Husain – Hands-on lessons in LLMs, RAG, fine-tuning, and AI evaluations. https://t.co/pVruDAsbgP
🚀 9) Jason Liu – Expert-led lectures on RAG and AI freelancing tips for ML developers. https://t.co/M8vZqsWxml
⚙️ 10) Dave Ebbelaar – Practical guides on building AI systems and real-world applications. https://t.co/Ayd1jHYTFt
This Palestinian protester has become the face of the pro-Palestinian movement in Germany.
He has been arrested several times for attacking the police and German people, but he never learns.
So German citizens have now started a petition for him to be deported!
How a young statistician identified a cognitive bias called "Survivorship Bias" and saved lives:
During World War II, the U.S. wanted to add reinforcement armor to specific areas of its planes.
Analysts examined returning bombers, plotted the bullet holes and damage on them (as in the image below), and came to the conclusion that adding armor to the tail, body, and wings would improve their odds of survival.
But a young statistician named Abraham Wald noted that this would be a tragic mistake.
By only plotting data on the planes that returned, they were systematically omitting the data on a critical, informative subset:
The planes that were damaged and unable to return.
• The "seen" planes had sustained damage that was survivable.
• The "unseen" planes had sustained damage that was not.
Wald concluded that armor should be added to the *unharmed* regions of the returning planes (the areas without bullet holes on the image below).
His profound logic: Where the survivors were unharmed was actually where the planes were most vulnerable.
Based on his insight, the military reinforced the engine and other vulnerable parts, significantly improving the safety of the crews during combat and saving thousands of lives.
Abraham Wald had identified a cognitive bias called "Survivorship Bias":
The error resulting from systematically focusing on survivors (successes) and ignoring casualties (failures) that causes us to miss the true base rates of survival (the actual probability of success) and arrive at flawed conclusions.
Survivorship Bias is all around us — its cost to business can be huge.
When we fail to consider the range of outcomes and the hidden evidence, we develop a skewed (and often incorrect) view of reality.
What is unseen often has more value than what is seen.
Source for this post: https://t.co/3mjCVJOQMY
12 Reasons Why Cities Need More Trees:
1. Temperature Control
One large tree is equivalent to 10 air conditioning units, and the shade they provide can reduce street temperature by more than 30%.
2. Noise Reduction
Trees can reduce loudness by up to 50%. In urban areas filled with the sound of cars, construction, sirens, aeroplanes, and music, trees are essentially the best way to block noise and keep cities — along with the homes and workplaces in them — quieter.
3. Air Purity
Trees remove an astonishing amount of harmful pollutants and toxins from the air. In urban areas air quality is often disastrously bad — with severe consequences for our health. Trees make the air we breathe much cleaner.
4. Oxygen
And, while absorbing all those pollutants, trees also put more oxygen back into the urban environment. Oxygen levels are significantly lower in cities compared to the countryside; trees help to solve that problem.
5. Water Management
Trees do more than just shelter us and our buildings from rain — which is, in fact, extremely important. They also absorb huge quantities of water, reduce run-off, neutralise the severity of flooding, and make flooding more unlikely altogether. Not to forget that their roots absorb pollutants and prevent them from feeding back into a city's water supply.
6. Psychological Health
Studies have proven what we instinctively know to be true: that human beings are significantly happier when surrounded by nature rather than sterile urban environments. Our emotions, behaviour, and thoughts are shaped by the places we spend time — and trees have a profoundly positive effect on our psychology. The consequential benefits of being happier and more peaceful — as individuals and as a society — are immense.
7. Physical Health
Beyond all the other ways in which trees improve air quality and the urban environment, much to the benefit of our health, they also encourage people to go outside. Cycling, running, and walking are all more common in urban areas with plenty of trees. A knock-on effect of people spending more time outdoors is also social integration and stronger communities.
8. Privacy
A simple point, but not inconsequential, is that trees provide privacy.
9. Economics
The total economic benefit of urban trees is hard to calculate. There are costs, of course, including the repair of infrastructure damaged by roots and maintaining the trees themselves. But the total economic benefit — a consequence of everything else in this list and more — far outweighs the expenditure. Trees make cities wealthier.
10. Wildlife
Trees are miniature cities all of their own, serving as a habitat for hundreds of different species, including birds and mammals and insects.
11. Light Pollution
Trees don't only block the light shining down, therefore keeping us and our cities cooler — they also disrupt light shining up, from street lighting, cars, houses, and billboards. Skies are clearer in cities with more trees.
12. Aesthetics
And, finally, trees are beautiful. They break up the potential monotony of urban environments — the sharp geometry, the greyscale roads and buildings, the endless rows of cars — with their trunks, boughs, canopies, and flowers.
Just think: the gold and red of falling leaves in autumn, the white and pink blossom of spring, the vast green canopies of summer, and the branches lined with hoar-frost in winter. Every single tree is a myriad of intricacy and texture, of colour and scent, of dappled light on the pavement, mottled bark, knotted roots, of clustered leaves and delicate petals and stern boughs.
Few streets would not be improved by the kaleidoscopic aesthetic delights of a tree, not to mention the many different species of tree, all over the world, whether willow, oak, lime, cherry, aspen, maple, birch, horse chestnut, dogwood, hornbeam, ash, sycamore... the list goes on.
There are some drawbacks to urban trees, most of them context-specific, and they are not — of course — universally appropriate. But it seems fair to say that many cities would benefit from at least a few more trees here and there.
What the world would look like if there were only 100 people:
18 would be from India 🇮🇳
18 from China 🇨🇳
4 from the USA 🇺🇸
3 from Indonesia 🇮🇩
3 from Pakistan 🇵🇰
3 from Nigeria 🇳🇬
3 from Brazil 🇧🇷
2 from Bangladesh 🇧🇩
2 from Russia 🇷🇺
2 from Japan 🇯🇵
2 from Mexico 🇲🇽
40 from the rest of the world🌎
Religion:
Christianity: 31 people
Muslims: 23 people
Hindus: 15 people
Buddhist: 7 people
not be religious: 16 people
Others: 8 people
Continent wise:
60 from Asia 🌏
16 from Africa🌍
10 from Europe🌍
9 from Latin America. 🌎
5 from North America 🌎