
零时四分
2.5K posts

零时四分
@itszerof
Cross-disciplinary observer | Political economy, tech shifts & classical wisdom | Structural insight · East–West synthesis · Calm analysis | 自得其乐,不亦快哉。












You can now enable Claude to use your computer to complete tasks. It opens your apps, navigates your browser, fills in spreadsheets—anything you'd do sitting at your desk. Research preview in Claude Cowork and Claude Code, macOS only.






Twitter's original 140 character limit was a result of SMS originally having a 160 character limit, which was deemed sufficient for most communications in 1984. The 160-character limit was adopted by Twitter when the site launched in 2006, 20 characters were reserved for the username, with 140 characters for the tweet.















Skip your daily nap, shrink your brain. A study by researchers from University College London and the University of the Republic in Uruguay has found that people who habitually take daytime naps tend to have significantly larger total brain volume—a key indicator of brain health that typically declines with age and is associated with reduced dementia risk. The team used Mendelian randomization, a method that leverages genetic variants (present from birth) that make people more likely to nap regularly. By analyzing brain MRI scans and health records from more than 35,000 participants in the UK Biobank, they discovered that those genetically inclined to nap had brain volumes corresponding to 2.6 to 6.5 fewer years of aging. While this doesn’t definitively prove that napping itself enlarges the brain, the genetic approach helps rule out many lifestyle-related confounding factors, providing stronger evidence of a potential causal relationship than traditional observational studies. Notably, the researchers found no link between napping predisposition and performance on tests of reaction time, memory, or visual processing. However, previous studies have shown that short naps can deliver immediate cognitive benefits. The study lacked specific data on nap duration, but prior research suggests naps of 30 minutes or less provide the greatest advantages while minimizing disruption to nighttime sleep. This is the largest study to date linking regular napping with brain structure. Although further research is needed in more diverse populations, the findings bolster the idea that a brief daytime rest may help preserve brain volume and support long-term cognitive health.

This is absolutely insane: At 7:04 AM ET today, President Trump said “the US and Iran have had productive discussions" to end the Iran War. By 7:10 AM ET, the S&P 500 surged +240 points adding +$2 TRILLION in market cap. 27 minutes later, Iran completely denied all of President Trump's claims and said there has been "no contact" with the US. By 8:00 AM ET. the S&P 500 had fallen -120 points erasing -$1 trillion in market cap. That's a $3 TRILLION swing market cap in 56 minutes, just in the S&P 500. What is happening here?








