What do people mean by multi-touch interaction?

The application of stone-throwing technology in a desktop file, whether it is video, picture or text, produces dynamic effect and rotation amplification, which makes the communication process full of fun and infinite imagination. Multi-touch is a brand-new technology, which is different from the traditional single-point or two-point touch system. From 2 o'clock to 3 o'clock, from plane to three-dimensional, from 3 o'clock to more points, interactive, multi-person use.