[krapp]

The Big Bang involved a finite amount of energy and created a finite amount of matter. New energy cannot be created. Therefore the universe is finite.

[Kranar]

You're kind of just making stuff up here. In particular the assertion that the big bang involved a finite amount of energy is entirely unfounded.

It's not that your statement is false, but that there is absolutely no consensus on the matter.

Some physicists make strong arguments that at the big bang the total energy of the universe was 0:

https://en.wikipedia.org/wiki/Zero-energy_universe