They were wrong about the horse

At one time the horse was a machine essential to truckers and transportation, farmers and taxis. 100 years ago it was predicted that the auto would replace the horse, and it did as a draft animal, but there are over 9 million horses in the U.S. now, up from the approximately 3 million in 1960, but down from the 25 million 100 years ago. At the turn of the last century it was predicted that the auto in 100 years would be cheaper than a horse--now that didn't happen.

http://www.americanequestrian.com/pdf/US-Equine-Demographics.pdf

http://www.theequestrianchannel.com/id3.html