Are you tucked in your couch, snuggled up with a fire burning, twiddling your time away on mindless entertainment because you've done your shopping, stated your obligatory holiday cheer on social media, and now you're just mindlessly doom scrolling your device? My latest distraction is Open A.I. ChatGPT. This is artificial intelligence, a language processing tool driven by A.I. with which you can have human-like conversations. It will answer questions, help you with tasks like writing emails, essays, or even code. We've trained a model called ChatGPT which interacts in a conversational way.

It would take about two months for the bot to swim the length of an Olympic swimming pool – in that time, Phelps could swim almost 5 million lengths. But the nano-swimmer is fast for its size, and it's strong enough to pass through more viscous liquids, like blood, to deliver medicine from inside your veins. The front crawl is the fastest way for humans to swim. So Tianlong Li at the Harbin Institute of Technology in China and his colleagues built their swimming robot to mimic that motion. Each nano-swimmer is 5 micrometres long and has three main parts, connected together like sausage links by two silver hinges.

The advertising industry has made huge strides in targeting, but there's one more big step to take to make ads truly relevant: We need to adapt each creative message so it is interactive and personalized to every single individual. The key to achieving what may be the holy grail of advertising is a thriving branch of artificial intelligence known as deep learning. It uses algorithms to mimic neural networks' capabilities to recognize and act on abstract patterns. A retailer, for example, might send ads for sweaters to one segment, ads for bathing suits to another. Soon, instead of those few variations, a brand will have a million personalized versions of an ad dynamically presented to a million different individuals.