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I had been reading on the wikipedia page about high-speed rail that initial experiments began in 1899, but it took several more decades until practical, scheduled rail travel began in 1933. At what date would it be somewhat commercially and technologically feasible to have high speed railroads going into regular service? In particular I'm interest about steam high speed rails earlier on; could the 1910s be a feasible date or are there technological problems preventing this?
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