Inflation theory explains why our universe is expanding and uniform, and it makes predictions that imply space is significantly larger than our observable universe.

“it predicts that our universe should be expanding that it should be very uniform but just to be clear you're not you're not actually replacing general relativity you're enclosing it yeah in the in inflation isn't that correct”

Inflation is a paradigm that explains the universe's size, flatness, and microwave background fluctuations through a quantum field that drove exponential expansion.

“inflation explains the c and b fluctuations by the fact that this quantum field had these irreducible perturbations these fluctuations thanks to heisenberg”