Facebook’s leadership has thwarted changes in its algorithms aimed at making the site less polarizing, according to the Wall Street Journal. The social network’s own researchers determined that its AI software promotes divisive content.

The pandemic has radically altered online shopping behavior, throwing a wrench into many AI systems. AI inventory trackers, recommendation algorithms, and fraud detection systems trained on pre-pandemic consumer behavior have been flummoxed by the different ways people now browse, binge, and buy.

Facebook’s AI can’t spot Covid-19 disinformation on its own. But with human help, it can slow the spread. Facebook uses a combination of humans and neural nets to crack down on messages that make false claims about Covid-19, which may have deadly consequences.

YouTube is a great place to learn about new ideas — including some that have been thoroughly discredited. YouTube’s recommendation algorithm is helping spread misinformation about climate change, according to research by Avaaz, a self-funded activist group.

The UK’s banking industry is using AI in many facets of the business. A survey of financial firms in the UK found that nearly two-thirds of respondents have deployed machine learning technology. Many said they expect their use to double in the next two years.