A novel mechanism of inflation is proposed where, starting only from a preexisting de Sitter background, no scalar fields are present, and density perturbations arise from the nonlinear evolution of gravitational waves, which unavoidably arise as quantum vacuum oscillations of the metric. This model-free picture of the early Universe gives concrete predictions that can be tested against cosmological observations.
In an interview with CNN’s Fareed Zakaria, NVIDIA CEO Jensen Huang has denied using AI makes him less smart. Huang’s remarks came in response to an MIT study last month, which shared that users who relied on AI for writing essays demonstrated less brain activity across regions of the brain and were unable to use unique thinking at the end. However, Huang, who shared that he had not come across this study, commented that using AI actually improved his cognitive skills.
The gist of MIT’s study indicated that users who relied on ChatGPT to write their essays ended up with lower brain activity after their third attempt. The researchers outlined that while ChatGPT essay writers did initially structure their essays and based their questions to the model on the structure, at their final attempt, they ended up simply copying and pasting the model’s responses. Additionally, the ChatGPT users were also unable to recall their work and “consistently underperformed at neural, linguistic, and behavioral levels.”
After CNN’s Fareed Zakaria questioned Huang about the study and asked him what he thought of it, the executive replied by sharing that he hadn’t “looked at that research yet.” However, Huang still disagreed with the research’s conclusions. “I have to admit, I’m using AI literally every single day. And, and, um, I think my cognitive skills are actually advancing,” he said. Commenting further, the NVIDIA added that the reason behind his skills improving was because he wasn’t asking the model to think for him. Instead, “I’m asking it to teach me things that I don’t know. Or help me solve problems that otherwise wouldn’t be able to solve reasonably,” he shared.
Psilocybin, the main psychoactive ingredient in magic mushrooms, extends the lifespan of human cells, a lab study suggests. Researchers also found that the psychedelic compound slows certain hallmarks of aging in older mice while improving their fur quality.
The findings, published July 8 in the journal npj Aging, provide the first experimental evidence of psilocybin’s potential anti-aging properties.
The National Institute of Standards and Technology (NIST) U.S. has set a new world record for the most accurate aluminum ion-based optical atomic clock.
This clock sets a new time-keeping benchmark, accurately measuring a second down to its 19th decimal place. That’s a major leap, making it 41% more accurate and 2.6 times more stable than the former record holder.
The aluminum ion clock’s accuracy record stems from two decades of persistent refinement.
First time quantum light sources, control electronics are tightly integrated on a silicon chip.
A packaged circuit board containing the chip placed under microscope in probe station during an experiment. The first-of-its-kind silicon chip combines both the quantum light-generating components (photonics) with classical electronic control circuits — all packed into an area measuring just one millimeter by one millimeter.
Tesla’s technological advancements and strategic investments in autonomous driving, particularly in its Full Self-Driving technology, are giving the company a critical and potentially insurmountable lead in the industry ## Questions to inspire discussion.
Tesla’s AI and autonomous driving advancements.
🚗 Q: When will Tesla’s Dojo 2 supercomputer start mass production? A: Tesla’s Dojo 2 supercomputer is set to begin mass production by the end of 2025, providing a significant advantage in autonomous driving and AI development.
🧠 Q: How does Tesla’s AI system Grok compare to other AI? A: According to Jeff Lutz, Tesla’s AI system Grok is now the smartest AI in the world and will continue to improve with synthetic data training.
🚕 Q: What advantages does Tesla have in autonomous driving development? A: Tesla’s Full Self-Driving (FSD) technology allows the company to collect and use real-world data for AI model training, giving it a significant edge over competitors relying on simulated or internet data.
Tesla’s Operational Excellence.
Questions to inspire discussion.
🏢 Q: What are Elon Musk’s current ownership stakes in Tesla and XAI? A: Musk owns 55% of XAI and 12.9% of Tesla, with potential to increase his Tesla ownership to 20% through a compensation package.
💰 Q: How do the valuations of XAI and Tesla compare? A: XAI’s valuation is expected to reach $200 billion in the next round, while Tesla’s valuation is approximately $1 trillion.
Potential Conflicts and Risks.
⚖️ Q: What conflict of interest exists for Elon Musk in a potential merger? A: Musk’s significant ownership in both companies creates a conflict of interest in merger discussions, as he must balance his interests in XAI (55% ownership) and Tesla (12.9–20% ownership).
🔒 Q: What control risk does Elon Musk face with Tesla? A: Musk currently lacks the 25% voting control needed for major decisions in Tesla, presenting a non-trivial control risk that could be mitigated through Tesla’s investment in XAI. ## Key Insights.