Believe in miracles,

for only those who dream of the impossible can ever accomplish it.

Logical proof of an infinite cosmos:

There are two choices: The cosmos is infinite or it is finite.

If I can prove that it can't be finite, then logically it must be infinite.

From set theory, for any set to be finite, the set must have a boundary.

Thus to prove a finite cosmos, one must be able to prove there is a boundary.

The cone of knowledge concept from philosophy and physics shows that we can never know all that exists.

Since we can't know all that exists we can never prove the cosmos has a boundary.

Since we can't prove a boundary, we can never prove the cosmos is finite.

Thus, the cosmos is infinite.