- New study, done by South Korean scientists, shows that “neither surgical nor cotton masks effectively filtered SARS–CoV-2 during coughs by infected patients.”.
- Even though previous research shows these masks were effective for influenza, they are not an effective way to stop the spread of COVID.
- Scientists don’t know yet how much of the virus is transmitted during coughing.
- It’s worth noting, that the COVID contamination was actually bigger on the outside of the masks, than on the inside.
- Social scientists can influence policymakers, but their studies may be skewed—as evidenced by new study that shows how ineffective AI is at predicting our lives.
- Three sociologists from Princeton asked hundreds of researchers to predict six life outcomes from 13,000 data points on 4,000 families—using AI or plain statistics.
- “None of the researchers got even close to a reasonable level of accuracy, regardless of whether they used simple statistics or cutting-edge machine learning.”
- The data came from a 15-year long sociology study, which was designed to find out the life outcomes of children born to unmarried parents.
- Experts say this is not surprising, and research has repeatedly shown that simple algorithms are better for assessing risk than complex black-box deep-learning algos.
- Scientists studying the Drimolen Cave Complex, a place full of informative fossils, provide new evidence that human evolution was not a linear process.
- This, and other studies that have been posted in recent weeks, shows that there were several types of ancient hominins living together in Africa.
- One of the findings shows that homo erectus, previously assumed to come from Eastern Africa, actually lived in South Africa, too.
- Homo erectus may have been the first species to migrate out of Africa into the rest of the world, and studies like this help us understand how it happened.
- After analyzing data from several decades, researchers warn of American corporate giants paying less tax than smaller companies, yet being less effective businesses.
- In the past, the biggest corporations paid slightly more tax—but for 2015-18, their effective tax rate was a whopping 13% lower compared to smaller corporations.
- The same goes for foreign taxes, with the largest corporations paying less than the small ones.
- Huge corporations give a lot of their profits to shareholders, but the top 10% of US households own 84% of all corporate shares.
- Despite their advantage, even Big Pharma companies failed to address the COVID crisis effectively, which begs the question: should we keep easing their taxes?
- Researchers examined whether people prefer to ignore information at times, even if it makes it harder for us to make a good decision.
- The team created 11 scenarios around three domains (health, finances, and other people’s perceptions) and asked 2,000 people to share their reactions.
- For example, in a scenario involving a routine medical exam, ~33% of respondents preferred not to learn what exactly was wrong with their body.
- Overall, the conclusion is that people don’t really want to know everything, and that we choose which information we don’t want, whether it’s health, finances, or sth else.
- Some information is too painful for us to learn, but in the long-term, more information generally leads to better decisions.