Incorrect! We Cannot See “The Entire Universe”

Even with gravitational lensing our vision is limited to the observable universe (note small u).

There is not the slightest scientific guarantee that the observable universe is “the entire universe”. To repeatedly say it is, under the cover of keeping things simple, is misleading, unscientific, and rather insulting to readers.

The observable universe might well be a virtually infinitesimal expanding “Hubble Bubble” in an infinite cosmological “ocean”.