Even if there is no electricity, it will not be mixed like this. What about the steam engine?, Reivew on Revolution

The invention of the internal combustion engine and the generator did not appear until the 19th century, and before that, the European continent relied on the steam engine to establish an industrial civilization. In the movie, even if there is no electricity, you can build a steam engine. At least the railway can keep running. . Even if there is no energy or electricity, there will always be coal, and it can always be dug out. Even if there is no coal, a steam engine can be made by cutting wood.
Since muskets can be used inside, and there are pistols, it means that the gunpowder has not disappeared, and the power mode that relies on combustion to generate power still exists, which means that the internal combustion engine can still provide power.
Have the descendants of Watt forgotten how to make an internal combustion engine?
In short, the people in the world are living an incredible life. It is estimated that the 9 people of our country on the other side of the ocean have already lived a happy life and will soon build a steamship to colonize the United States. (In other words, our country is least afraid of the disappearance of electricity. In rural areas, the standard of living without electricity has returned to the 1980s)
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Well, then the steam engine finally appeared,
but, Nima, why burn wood, coal?
You still have a ready-made railway network like this!

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