In computers, we do all kinds of manual manipulations. We grab and drag icons. We click on and open windows. We pull down a screen. We stretch a screen. We scroll up and down.

Louis B. Rosenberg’s quote highlights the manual manipulations involved in using computers and interacting with user interfaces. He describes the various actions we commonly perform on digital devices, such as grabbing, dragging icons, clicking, and scrolling. These actions are part of the process of engaging with computers and accessing various functions, demonstrating how much of modern computer interaction requires direct, physical engagement with the screen or interface. Rosenberg is emphasizing the physicality involved in what is often perceived as a purely digital or intellectual activity.

The origin of this quote lies in Rosenberg's work in the field of virtual reality and human-computer interaction. As a researcher and inventor, Rosenberg has focused on improving how humans interact with technology, particularly in ways that feel more natural and intuitive. His mention of actions like clicking and stretching a screen reflects his interest in how user interfaces have evolved, particularly in terms of touchscreens and other modern technologies that rely on manual input.

Rosenberg’s comment also points to how the design of computers and their interfaces has become more user-friendly over the years. The ability to manipulate on-screen elements through simple gestures like dragging or scrolling has made interacting with computers more accessible and intuitive. These manual actions have become second nature for many people, highlighting how technology has increasingly been designed to accommodate natural human movements.

Ultimately, Rosenberg’s quote reflects on the evolution of computer interfaces and the physical interaction between humans and machines. By emphasizing these everyday gestures, he sheds light on the connection between the physical world and the digital environment, showing how integral manual manipulation has become in modern technology use.