IIRC this is correct, but the model got a bit tripped on "unobservable" vs "observable" Kind of interesting (or maybe not) that the content is good, but that k

IIRC this is correct, but the model got a bit tripped on "unobservable" vs "observable" Kind of interesting (or maybe not) that the content is good, but that kind of detail is not. Question: What is size of the universe? Answer: The size of the universe is a subject of debate. The observable universe is the portion of the universe that we can observe from Earth, and is estimated to be 93 billion light-years in diameter. The observable universe is much smaller than the universe as a whole, which is estimated to be 13.8 billion light-years in diameter. The universe is the entire collection of matter and energy in the universe.