Found here. Short version: sure, everybody invents gunpowder. But have you ever thought about the advantages of wire-drawn iron nails? Because a steady supply of those will make you popular, really really fast…
One thought on “My PJ Lifestyle piece on *other* things to invent in a time-travel RPG.”
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And you’re much less certain to blow yourself up.
Although there still exists the potential to cripple yourself in an industrial accident.