# What would the world be like if c→∞ and h=0?

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• GW150914
In summary, if the speed of light were infinity and the Planck constant were zero, the world would be completely Newtonian. However, this would lead to several problems, including the instability of all atoms and the inability for objects to come into thermal equilibrium. The development of relativity and quantum mechanics was necessary to explain the universe that we live in, as classical Newtonian mechanics falls short in certain areas. There are still questions about whether taking c to infinity in quantum electrodynamics would solve these issues.
GW150914
What would the world be like if the speed of light is infinity and the Planck constant is zero (therefore the world is totally Newtonian)?

As you say, totally Newtonian.

In that world, several things would happen that don't happen in the real world that we live in:
- All atoms would be unstable, so there would be no matter as we know it.
- Even if there was some way of getting around that unstable atom problem, objects would radiate unlimited amounts of energy and would never come into thermal equilibrium with their surroundings.
...
And so on, through a long litany of problems.

The physicists of the early twentieth century didn't invent relativity and quantum mechanics because they were sadistic and wished to inflict pain on future generations of physics students. They invented relativity and quantum mechanics because (although it works really well in many areas) classical Newtonian mechanics doesn't completely explain the universe we live in.

Nugatory said:
In that world, several things would happen that don't happen in the real world that we live in:
- All atoms would be unstable, so there would be no matter as we know it.
- Even if there was some way of getting around that unstable atom problem, objects would radiate unlimited amounts of energy and would never come into thermal equilibrium with their surroundings.
...
And so on, through a long litany of problems.

Perhaps for these problems we only need h=0. I think for QED one can safely take c to infinity, since lattice QED with small enough spacing should be compatible with all QED experiments. I think the chiral fermion problem is one issue about which we don't yet know whether it is safe to take c to infinitity.

## 1. What is c→∞ and h=0?

c→∞ refers to the speed of light reaching infinite velocity, while h=0 refers to the Planck constant approaching zero. These are theoretical concepts in physics that have not been observed in the natural world.

## 2. How would the world be affected by c→∞ and h=0?

If c→∞ and h=0 were to occur, it would fundamentally change the laws of physics and our understanding of the universe. The speed of light is a fundamental limit in our current understanding of relativity, so its infinite speed would have significant consequences.

## 3. Would time travel be possible with c→∞ and h=0?

It is impossible to say for certain, as the effects of c→∞ and h=0 are purely theoretical. However, it is likely that time travel would become possible, as the concept of time is closely linked to the speed of light in our current understanding of physics.

## 4. How would c→∞ and h=0 affect everyday life?

If c→∞ and h=0 were to occur, it would have a profound impact on everyday life. The laws of physics that govern our daily activities would no longer apply, and the world as we know it would be unrecognizable.

## 5. Is it possible for c→∞ and h=0 to actually happen?

At this point in time, there is no evidence to suggest that c→∞ and h=0 could occur. These are theoretical concepts that have not been observed in the natural world. However, as our understanding of physics continues to evolve, it is possible that these ideas may be revisited in the future.

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