My Inventions: The Autobiography of Nikola Tesla
He had his own vision of a "singularity" basically interconnectedness of all human kind across earth to "rid ourselves" of war. Free energy, etc. Held full models of his machines and ideas in his head (spatially fascinating) before construction.
Several nervous of mental breakdowns when over-working, strange debilitating flashes of light, etc. Probably some brain chemistry idiosyncrasies.
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