Not enough disagreement in the transcripts to form camps. These are the positions taken by people with demonstrated expertise on this topic first, then by how many people heard them on it, then by VoiceRank.

Neil deGrasse Tysonhost96

The observable universe is nearly 100 billion light-years across today, though the size of the total, unobservable universe remains unknown.

“the total size of the observable universe today is nearly a 100 billion light years across right today”

StarTalk · Dec 2023 · 1 episode · 1.6M views on this topic

Positions are extracted from transcripts by a model and may misattribute who said what. Every quote links to the episode it came from.