Douglas Adams was almost right. Instead of being put into suspended animation while we wait for lemon soaked napkins, we will install suspended animation units in our self-driving Johnny Cabs to avoid wasting our time being aware of traveling and be awakened when we reach our destination. As we continually increase the size of roads, we will end up in a traffic jam so large that it brings society to a halt for over 900 years.
Oh, and it was Golgafrincham that shipped the useless 1/3 of their population (car tire saleman, middle managment, telephone sanitizers, marketing execs, etc.) to crash on earth where we wiped out the indigenous life and took over. So, we'll never find out the what the ultimate question to life the universe and everything is, which is, of course, mutually exclusive with the answer.