"A transmigrator should at least try to invent something like glass in order to get rich. They should try to plagiarize some poems to become an epic poet in the new world. Or, at the very least, they should plagiarize some novels and become a literary great master in the new world."
Back in the day, maybe because I wanted to improve my financial condition, or maybe it was my way of being sardonic towards this strange fate, I really did try to do some things that I felt a transmigrator should do.
However, it was proved that some things worked only in stories meant only for fun. Those ideas weren't reliable at all in real life.
Indeed, Eich's technology was only at a primitive Middle Ages level compared to my original world. However, Eich had magic and alchemy. Engineering here didn't seem very scientific at all, but it was more than enough to deal with daily necessities of life.
