[ExI] Cosmic discrepancy evidence of quantum gravity?

[Stuart LaForge]

So, long story short, for the last few years different, but  
increasingly accurate methods of measuring the Hubble Constant have  
been converging on increasingly precise but DIFFERENT values for it.

The three methods and the values they measure for H0 are:

the Planck satellite method based on measuring the angular width of  
the image of the early quantum fluctuations that superimposed upon the  
cosmic microwave background (CMB) which measures H0 = 67.4 ± 0.5  
km/s/Mpc,

the Cepheid variable method, based on the use of Cepheid variable  
stars in distant galaxies as standard candles, measures H0 = 73.8 ±  
1.0 km/s/Mpc,

and the Tip of the Red Giant Branch (TRGB) method which uses the  
luminosity of brightest red giants in nearby galaxies as standard  
candle to measure Ho = 69.8 ± 0.8 km/s/Mpc.

All three measurements are different yet precise enough that their  
standard errors don't overlap.

https://media.universe-of-learning.org/documents/UoL_SciBriefing_2019-10-23-HubbleConstant.pdf
https://arxiv.org/abs/1907.05922
https://www.space.com/hubble-constant-discrepancy-explained.html

Excerpt-----------------
There's a puzzling mystery going on in the universe. Measurements of  
the rate of cosmic expansion using different methods keep turning up  
disagreeing results. The situation has been called a "crisis."
------------------------

This mystery is perplexing. Anybody have any thoughts as to what is  
going on here? I have a whacky hypothesis:

Universes, Everett branches, or causal cells as I have called them in  
the past, are particles of gravitometric space-time. As such the  
expansion rate of the universe is subject to quantum randomness and  
thus differs between measurements.

Thoughts, anyone?


Stuart LaForge