The Inevitable: Understanding the 12 Technological Forces That Will Shape Our Future

by Kevin Kelly

Games now have scroll-back functions that allow replays, redos, or extra lives, a related concept. One can rewind the experience and try again, with slightly different variations, again and again, until one masters that level. On the newest racing games, one can rewind to any previous point by literally running the action backward. All major software packages have an undo button that lets you rewind. The best apps enable unlimited undos, so you can scroll back as far as you want. The most complex pieces of consumer software in existence, such as Photoshop or Illustrator, employ what is called nondestructive editing, which means you can rewind to any particular previous point you want at any time and restart from there, no matter how many changes you’ve made. The genius of Wikipedia is that it also employs nondestructive editing—all previous versions of an article are kept forever, so any reader can in fact rewind the changes back in time. This “redo” function encourages creativity.