I accidentally walked into a time machine. When I came out, I discovered that I came to 2100. To my great surprise, there are no tall buildings, no flying cars. Dwarf houses are everywhere, as if returning to primitive society. I was told that it was all because of an accident that caused the steel pipe like seamless steel pipe to disappear in the world.

Without steel pipes, high-rise buildings lack pillars and people have to build low-rise houses. The remaining steel pipes have already been run down and the intact roads have become muddy because they can’t dredge the rainwater without steel pipes. With the disappearance of steel pipes, tap water and natural gas have disappeared in people’s lives.

In this era, humans have high-level electronic technology, but they have an original living environment. I communicate with some people. When I said that in my time, people only need to unscrew the faucet to wash things, only need to open natural gas for cooking, and there are high-rise buildings and buildings of various shapes. They all opened their mouths and thought that was incredible.

When I finally crossed back to 2018, I hurried to wash my face to wake myself up. I looked at the water flowing from the faucet. I laughed happily. Fortunately, there is still you-steel pipe!