The Saab Question Everything Series is a series of supplements, films and online content designed to promote the independent, innovative thinking with which both Saab and The Independent have traditionally been associated. Its purpose is not only to inform but to explore different points of view and to provoke debate.
In our third online supplement we're focusing on Visionaries past and present, and how our world continues to be shaped by everything from the telephone to space tourism.
Explore our in-depth features on what has, hasn't, does and might work, then join the debate with your visions for a chance to win a fantastic Saab Arctic Adventure holiday and a Saab Everywhere bike.
Find out more about The Saab Question Everything Series.
Do you dream of changing the world?
Check out the Channel 4 site for more information about modern day visionaries brought to you by Saab. www.channel4.com/questioneverything