The dimensionality reduction blow in the three-body is a fatal blow. Literally, this dimension reduction blow is to compress your spatial dimension. You used to be a four-dimensional space, now I give you three dimensions, and even blow the three-dimensional space of the earth into a piece of paper, a two-dimensional space, and all the three-dimensional creatures on it disappear.

There used to be something called two-way foil, which could play the role of space attack. The space where the other person is located can be reduced from high space to low space. The higher the spatial dimension of human beings, the more resources they can use, the richer the ways of activities and the stronger their ability to master. But if you reduce it to a blow, he can't survive in this living space, only some creatures with low intelligence can survive. It should be said that it is a kind of creature in theory.

The novel "Three-body" is actually well written, because some common sense of physics and some concepts about time and space are designed, and most of them are reasonable. He is a better reasoner. If he is interested, he can read this science fiction novel, and some scientists have made bold speculations on it. The space where human beings are now may have been hit by dimensionality reduction. Originally, there was a 1 1 dimensional space in the world, but two civilizations clashed and used this method on each other, and eventually they all lost it and became a very low three-dimensional space.

If human beings want to improve their own spatial dimension, the power they have must go beyond this spatial dimension. But if you are a creature living in this spatial dimension, how can you master the power beyond this spatial dimension? That probability is very small, so human beings can reduce the dimension relative to their own low-level civilization, but they can't help their own space to increase the dimension.