📝 All Neural Network Math Explained in 5 Hours

A five-hour lecture covers all the math behind neural networks and deep learning.

The video was recorded four years ago by 16-year-old Adam Dhalla — it has now reached nearly 650,000 views.

"I'm a UC Berkeley EECS student taking machine learning and he is doing a better job teaching it than any professor I've ever had," said one of viewers.

📝 Watch on YouTube.

🦖 Two New Dinosaur Species Found

Paleontologists on both sides of the Atlantic have identified two distinct species, widening our view of prehistoric life.​
The latest, a dome‑headed herbivore from Montana, was described only days ago.​

In Wales, modern digital scanning finally identified a giant predator first found 125 years ago.

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❎ xAI to Launch Fourth Grok Companion Named Mika

Elon Musk's xAI is preparing to introduce its fourth AI companion, Mika.

The new character, described as a motorcycle enthusiast, is designed to make the Grok chatbot platform more engaging and appealing to users.

The announcement comes as xAI continues expanding Grok’s multimodal capabilities following recent updates to the Imagine feature.

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🦵 Nike Unveils Powered Sneakers With a Motor

Project Amplify is a robotic footwear system that includes a motor, a driver belt, and a battery.

First testers say the sneakers increase speed by roughly 20%: "A full sprint feels like a relaxing jog."

It's still an early prototype; commercial launch expected in the coming years.

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❌ Scientists, Tech Leaders, and Politicians Call for a Ban on Super AI

An open letter from the nonprofit Future of Life Institute urges a moratorium on developing superintelligence (AGI)—AI that could surpass humans at every task.

✍️ The statement has been signed by over 39,000 people, including Apple co-founder Steve Wozniak, Stability AI co-founder Emad Mostaque, former Baidu president Ya-Qin Zhang, papal advisor Paolo Benanti, Prince Harry and Meghan Markle, and several Nobel and Turing Award winners—including "Godfather of AI" Geoffrey Hinton.

The authors acknowledge AI's potential advantages, but caution that a superintelligence that could emerge within a year or two might pose significant risks to humanity—from loss of freedom to possible extinction.

Critics argue that the proposal is too vague, as it remains unclear who would enforce such a ban, how it would operate, what exactly would be restricted, or what constitutes "consensus" or "public support."

In March 2023, after GPT-4 release, the same institute called for a six-month pause on developing more advanced AI systems.

Would you support a ban on AGI development?

🔥 — Yes, until it's proven safe
🎃 — No, we can't slow down progress
🤔 — We need regulation, not a ban

🪼 China Unveils Stealth Jellyfish Drone

Chinese researchers have built a transparent, jellyfish‑like "underwater phantom" for quiet underwater missions.​

Led by Tao Kai at Northwestern Polytechnical University in Xi’an, the soft, umbrella‑shaped robot copies real jellyfish to glide with very little noise, making it hard to detect.​ It is meant for underwater sensing, real‑time environmental monitoring, and possible covert reconnaissance.​

Made with a hydrogel electrode and flexible tentacles, it is 120 mm across and weighs 56 g, offering a compact, low‑impact option for silent ocean work.

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❎ xAI Launches Grokipedia Beta as Wikipedia Rival​

Elon Musk's xAI quietly launched Grokipedia v0.1 on Monday, pitching the AI encyclopedia as a challenge to Wikipedia after delays and debate about its goals.​

The beta went live with about 885,000 articles, saw brief outages, and features AI‑verified pages with limited user editing compared to Wikipedia.​

The release came a week after Musk's planned October 20 date, which he postponed to "purge out the propaganda".

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📱 Telegram Founder Unveils Cocoon AI Network​

Pavel Durov announced Cocoon, a decentralized AI network on the TON blockchain.

GPU owners can rent out their computing power and earn TON cryptocurrency for running AI models, while app developers pay for processing requests.​

Cocoon is now accepting applications and will launch in November, with Telegram as its first major client.​

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🚘 Study Finds EVs Cleaner Than Gas Cars After Two Years of Operation

Electric vehicles offset their energy‑intensive manufacturing and emit less than gasoline cars after about two years on the road, a study in PLOS Climate finds.​

EVs start with roughly 30% higher CO₂ from battery production, but then keep a much lower carbon footprint for the rest of their life cycle.

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Ⓜ️ AI Content to Dominate Instagram and Facebook

Meta CEO Mark Zuckerberg announced that Instagram and Facebook will soon feature more AI-generated content, marking the 'third era' of social media. This comes as Meta reported a 26% revenue increase to $51.24 billion, but shares dropped over 11% due to concerns about AI spending. Zuckerberg noted that social media has seen two eras: content from friends and family, and creator content. He indicated that AI-generated content will be the third era, with Meta planning to add more content to its recommendation systems.

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📈 Perplexity Finance Now Displays the Investment Portfolios of U.S. Politicians

Holdings and public stock trades by U.S. lawmakers are now available on Perplexity Finance, according to cofounder and CEO Aravind Srinivas.​

Users can explore public trading activity and see which politicians hold specific stocks in the dedicated Politicians section on Perplexity Finance.

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🏆 The Gap Between Open and Closed AI Models Is Shrinking

According to Epoch AI, open-weight models now take an average of 3.5 months to reach the performance level of leading closed systems developed by OpenAI, Anthropic, and Google. A year ago, that gap was about 12 months.

The gap between today's best open-source models and top closed-source models is comparable to the difference between flagship models like GPT-5 or Gemini 2.5 Pro and their lighter mini/flash versions.

🪑 Toyota Shows Walking Robot Chair

Toyota showed a walking robot chair. The Walk Me concept is designed to replace bulky, hard-to-maneuver wheelchairs.

"Leg-tentacles" will help people with disabilities go up stairs, get into cars, and overcome small obstacles. It's simpler, faster, and without the need for ramps.

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👐 OpenAI Offers 12 Months of Free ChatGPT Go in India

OpenAI is offering Indian users 12 months of free access to ChatGPT Go—unlocking faster answers, higher limits for chatting, image generation, file analysis, and custom GPT creation.

The promotion is open to users physically in India, including new and free-tier users, as well as existing ChatGPT Go subscribers. A valid payment method (credit card or UPI) is required to enroll.

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