Think about over two hundred years ago, Watt had just improved the steam engine. At that time, the chat in the tavern and the content about steam engines in newspapers and flyers were really fragmented, and everyone's experience was really different. Some people don't need to buy a steam engine, they just need to use water trucks, windmills, and animal power. Traditional power sources are more stable. Some people are unwilling to pay the high cost of coal and constantly tinker with various "local models" such as manual looms, manual mills, and hydraulic improvements. Some people think that steam engines are useless: they are noisy, dangerous, and often have problems, which is just fancy. Some people are crazily plundering wool: searching for cheap and inferior coal everywhere, exploiting mine owners' loopholes, and using free water power by the river to minimize costs. It was these seemingly contradictory voices and attempts at different paths that ignited the raging flames of the Industrial Revolution. The steam engine has evolved from an optional invention to a super productivity tool that has changed all of humanity. Two hundred years later, when our descendants come across today's posts, they will probably laugh and say, "Did anyone think this thing was useless back then