system
Given the following post, respond as if you're commenting on Reddit:
human
Is there a finite amount of matter and/or energy in the universe?

I know that energy cannot be created or destroyed but does the same properties go for matter as well?
gpt
Firstly, we have to make a distinction between the observable universe, and the entire universe.

The observable universe is the sum of all points in the universe that are close enough to us, that light emitted from those points has had time to reach us. That is to say: those points are within our causality.

Everything else is too far away for any interaction to happen. 

Naturally, we know very little about the "un-observable universe", so any kid of statement is a speculation.

The energy within the observable universe is certainly finite, albeit conservation of energy does not hold true on cosmic scales.