In the history of human scientific exploration, the speed of light has always been a constant full of mysteries. If the speed of light was no longer the limit of the universe, but became infinite, how would our world change dramatically?

First, the universe will return to an ideal 'pastoral age'. In this hypothetical universe, no longer bound by the speed of light, the distances between planets and galaxies will no longer be an insurmountable chasm. The stars in the night sky, their position and brightness will no longer be frozen images of past historical moments, but the present updated in real time. For example, the red giants we know as Seamount II and Betelgeuse may no longer be the giant red nebula, but their current true form. And for the Andromeda galaxy that is rushing towards us, its volume in the night sky will become huge, and it will be visible to our naked eyes.

Such a universe will be a universe of synchronized information and instant reactions, a universe without time delay. There, any celestial changes will be immediately communicated to the eyes of every observer, and the mysteries of the universe will be revealed to all beings in a way that has never been seen before.

The infinite speed of light means a complete solution to the energy problem. Imagine that the sun's rays no longer take 8 minutes to reach the earth, but in an instant. In this way, the huge amount of energy released by the sun in an instant is enough to provide a steady stream of power for the earth. Not only the sun, but every star in the universe, no matter how far away from us, their light and energy can reach the earth in an instant.

However, this unlimited supply of energy may not be entirely a boon. In such a situation, the temperature of the Earth and its night sky will rise dramatically. We know that stars are not only a source of light, but also a source of heat. When the energy of all these stars arrives on Earth at the same time, our home will face an unprecedented barbecue effect. Instead of being cold and dark, the night sky has become so hot that it may even exceed the temperature of the surface of the stars. And the earth, as a participant in this barbecue banquet, will inevitably get a hot roast. In such a universe, finding a shady place may become the ultimate pursuit of future civilizations.

In a universe with an infinite speed of light, the laws of physics will undergo a revolutionary change. Special relativity and general relativity, the two pillars of modern physics, will lose their current relevance. This is because they are all built on the basis of a finite speed of light. For example, the clock-slow shrinkage effect in special relativity and the description of gravity in general relativity are closely related to the value of the speed of light. If the speed of light becomes infinite, the Lorentz factor will be equal to 1, the clock slowness will no longer exist, and the velocity synthesis will only require a simple Galilean transform to be applied.

However, quantum mechanics, a more esoteric physical theory, may survive to some extent. Although we don't have a good understanding of the strange behavior of microscopic particles, they may be somehow connected to the speed of light at a deeper level. In addition, the well-known mass-energy conversion formula E=mc squared will also be put to the test. Under this theory, a small amount of mass can be converted into a huge amount of energy. How will stars and atomic bombs work in a universe with infinite speed of light? This is a question that is beyond our current imagination.

The conditions for life will also be challenged. The atomic structure will cease to exist because the orbital radius of the electron is inversely proportional to the speed of light. The infinite speed of light means that the radius of the electron orbit is 0, and the nucleus may only be able to react by exchanging protons or neutrons to sustain life. In this universe, life forms may be beyond our current understanding, and they may perceive and adapt to this new world in a whole new way.

The infinite speed of light will not only change the physical laws of the universe, but also have a profound impact on our vision. The night sky will no longer be a curtain of darkness dotted with the glimmer of stars, but will become unusually bright, like day. The sky in every direction will be filled with the light of the stars, and we will not be able to distinguish between the stars in the sky and the sky itself.

However, such a night sky is not just an increase in brightness. Due to the infinite speed of light, light loses its frequency, which means that color will cease to exist. We currently perceive colors by the frequency of light, but in a universe with infinite speed of light, living beings will only be able to see a grayscale world. Such visual changes will not only affect our perception of the universe, but may also profoundly change the evolutionary path and survival mode of living organisms.

The theory of infinite speed of light will lead us to a completely new idea of the universe. In this universe, the light of all the stars will arrive on Earth at the same time, making the universe visually 'homogeneous'. We can no longer understand the history and evolution of the universe by looking at distant galaxies, because all the information will be synchronized, without the depth of time.

In addition, this theory also challenges the limits of our science and imagination. In such a universe, the traditional laws of science no longer apply, and new theories are needed to explain and understand the observed phenomena. At the same time, it stimulates our imagination and prompts us to think about what life and civilization might look like in such a disparate physical environment. The infinite speed of light is not only a scientific hypothesis, but also a thought experiment to explore the infinite possibilities of the universe.