Alvin Toffler on Illiteracy in the 21st Century The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and relearn.Alvin Toffler By Brent Logan Engineer. Lawyer. WordPress geek. Longboarder. Blood donor. Photographer. More about Brent. View all of Brent Logan's posts.