Elon Musk once explained in detail why tunnels are very safe in earthquake.
"Earthquakes are essentially a surface phenomenon.
It’s like waves on the ocean.
If there’s a storm, you want to be in a submarine.
Being in a tunnel is like being in a submarine.
The tunnel is constructed out of interlocking segments, kind of like a snake.
Sort of like a snake exoskeleton, with double seals.
Even when the ground moves, the tunnel is able to shift along with it, like an underground snake.
It doesn’t crack or break.
And it’s extremely unlikely that both seals would be broken.
It’s capable of taking five atmospheres of pressure.
Waterproof. Methane-proof. Gas-proof of any kind.
And it meets all California seismic requirements.
🚀 xAI just dropped Grok 4.7!
Elon Musk’s xAI officially released Grok 4.7 today (September 21, 2026) — their most capable model yet for coding and knowledge work.
It’s a clear step up from Grok 4.6 at the exact same price and speed. The model works longer on hard tasks, double-checks its own work more carefully, and comes with the strongest safety safeguards xAI has shipped so far.
Key highlights:
• 2.1 trillion parameters (~40% larger than Grok 4.6)
• Pricing stays at $2 / million input tokens and $6 / million output tokens
• Available right now in the Grok app, Cursor, Grok Build, and the xAI API
• Strong gains on long-horizon coding and agentic knowledge-work benchmarks
• Competitive frontier performance, especially on price-performance
Elon called it “a strong combination of intelligence, speed & low cost.”
Next up on the roadmap: Grok 4.8, 4.9, and Grok 5.
Go try it: Grok app, Cursor, or the xAI API.
#Grok47 #xAI #Grok #AI
🎉China takes another step in the global chip race.
Chinese memory chipmaker CXMT says its fifth-generation DRAM platform has entered mass production.
The company also unveiled new 24Gb LPDDR5X memory chips designed for smartphones and portable devices.
• Up to 50% more chips produced per wafer
• Higher memory density
• Lower power consumption
• Greater competition in the global DRAM market
The semiconductor race is getting more competitive.
@cb_doge The world will never disappear (except for natural reasons) because no country allows it, and people believe that the situation in which the world can disappear will happen very simply.