In this case, they’re looking at an extreme scenario where both the theory can be observed in practice (it’s hard to observe in the first place), and where any flaws should become apparent (by observation deviating from prediction).
Science assumes that any theory has limits, conditions where it doesn’t apply. If we can’t think of such limits, we try to find conditions where the theory breaks down in reality. Impressive when extremes are examined, and the theory STILL predicts accurately.
I get it. Thanks. Gotta keep those gears turning!⚙️
After looking through a telescope for years, the question becomes, “ how does all this work?” The astrophysics part of it can be quite intimidating, but the fun is showing someone the Moon, or Saturn, or a star cluster for the first time.🔭