Recent interest in what is called "The Hubble Tension"Recent interest in what is called "The Hubble Tension" brought to the fore potentially conflicting error estimates for $H_0$ as illustrated in be below diagram. I've been looking for any error estimates for the mass* of the observable universe $m_U$ but thus far I've not found a single such estimate let alone a diagram comparing various error estimates for $m_U$.
Is there such an estimate?
*Presumably it would have to be the sum of all forms of mass-energy, including dark matter. Correct?
