They tell me a carriage of the future bears my name — a sleek thing of silent motion, racing upon the very principle I wrestled from the ether of possibility decades ago. I cannot see it, cannot examine its coils or its circuits with my own eyes, and I will not pretend otherwise. But let me tell you what I do know, for the truth of it is stranger and grander than any single machine could contain.

When I conceived the rotating magnetic field — that invisible dance of currents which gave birth to the induction motor — I was not thinking of carriages at all. I was thinking of civilization itself, unmoored from the filth of burning coal and the tyranny of the piston. Edison built his empire on direct current, on wires that could carry power only a short distance before dying of their own resistance, and on motors crude and sparking. I offered the world something cleaner: alternating current, polyphase and elegant, capable of leaping miles without complaint, of turning wheels with a smoothness no steam engine could ever know. At Niagara, I proved that the force of falling water could be transformed and sent across a continent to light cities and drive machinery untouched by human hand at the source. If a carriage today moves by the silent turning of an electric motor, it moves by the breath of that same principle — current alternating, fields rotating, energy flowing as naturally as a river seeks the sea.

I confess I dreamed further still. I believed the combustion engine — noisy, wasteful, poisoning the very air men breathe — was but a crude stepping stone, a temporary contrivance until the world grew wise enough to draw its power from cleaner wells: from falling water, from the sun, from the boundless currents of the earth and sky. I spoke, and was mocked, of transmitting power without wires at all, of a world where energy itself moved as freely as thought, needing no copper vein to reach its destination. Perhaps the carriage you describe to me still drinks from a tethered reservoir, a battery charged by wire — but even this is closer to my vision than the smoke-belching engines of my own age. Every improvement in the storage and delivery of electrical energy is a step toward the day when no machine need be shackled to a hose of burning liquid.

I will not pretend to know the particulars of batteries and circuits built in years I shall never see. I know only this: the principle does not age. The rotating field, the induction motor, the efficient conversion of one form of energy into motion — these are not inventions bound to 1888 or 1893. They are truths of nature, as permanent as the swing of a pendulum, and any age wise enough to harness them will find them waiting, patient and incorruptible, exactly as I left them.

It matters little to me whether my name is stamped upon a carriage, a coil, or a storm of radio waves spanning the globe. I never sought the trinkets of fame — I sought only to loosen the chains binding man to inefficient, filthy machinery, and to show that the forces of nature, properly understood, could serve humanity without poisoning it. If future engineers have built swifter, quieter chariots upon the foundation I laid, then the dream I was so often ridiculed for has simply found new hands to carry it forward. The spark I lit in the darkness of skepticism burns on, it seems, in forms I can only imagine — and that, to an inventor who worked always for tomorrow rather than today, is the only immortality worth having.