Galaxy Fold: What is the point of Samsung's new foldable phone?

After many rumours and leaks, Samsung has finally revealed its groundbreaking folding phone. It's certainly an exciting innovation but, really, what is the benefit and what will it be used for – Oh, and how can Samsung get away with charging $1,980 or €2,000 for it? The Galaxy Fold was the opening gambit at Samsung's San Francisco keynote event, where it also revealed three versions, no, four, of the Samsung Galaxy S10, a new fitness tracker and a smartwatch with a sports angle. But it was the Fold which caught the attention. In the current vogue for maximum screen size but minimum phone size, while noting that our hands aren't getting any bigger, a screen that can double in size was bound to come along sooner or later. And it looks like other companies like Xiaomi, Huawei, Motorola and even Apple are exploring the technology.