Quite far, actually. At absolute minimum theyd need a printing press and centuries worth of advancements in metallurgy.
Rome was ahead of the curve in a lot of respects, but I dont think there was even remotely a shot at industrialization. There were just too many missing pieces.
At a minimum the total abolition of slavery both defacto and demure plus a century of peace, stability, and trade to even have an outside shot.
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