In this edition of the Evolution of Technology blog series, which is co-written by Professor David E. Weber and myself, we take a look at Travel. How we book it, do it, and live it. Without a doubt, travel has undergone incredible changes since I went to Europe using Frommer’s “Europe on $5 and $10 a Day,” when I was 19. And, we did it, too. I’m going to take the first stab at this column, followed Professor David E. Weber who, as I am writing this, is traveling to and from England.