South Africa, Jan. 2 -- Personal messaging is part of a strategy used by advertisers to build a more intense relationship with consumers. It often consists of pop-up adverts or follow-up emails reminding us of all the products we have looked at but not yet purchased.

This is a result of AI's rapidly developing ability to automate the advertising content we are presented with. And that technology is only going to get more sophisticated.

OpenAI, for example, has hinted that advertising may soon be part of the company's ChatGPT service (which now has 800 million weekly users). And this could really turbocharge the personal relationship with customers that big brands are desperate for.

ChatGPT already uses some advanced personalisation, ma...