There was a study done in the early 20th century of all the entrepreneurs who entered the automobile industry around the same time as Henry Ford there were something like 500 automotive companies that got funded had the internal combustion engine had the technology and had the vision. Sixty percent of them folded within a couple of years.
For the poison of hatred seated near the heart doubles the burden for the one who suffers the disease he is burdened with his own sorrow and groans on seeing another's happiness.