Is there a simpler way to describe the latest discrepancies or problem with the expansion of the universe. Does the rate of expansion consistently get faster and faster? I was reading this and had some questions. https://www.sciencemag.org/news/2019/07/debate-intensifies-over-speed-expanding-universe
The modified Big Bang is the mainstream cosmological models and it describes the observations and data. Discrepancy means a comparison between old models and new models. The Big Bang resolves them.
The article you quote is talking of a discrepancy between measurements of the Hubble constant, and I have asked about it in the astronomy.se. The resolution will have to be by finding the difference in the models that calculate the Hubble constant. I suspect, since the discrepancy between the various measured values is with the number derived from the Cosmic Microwave Radiation, which has a lot of hypothesis , thermodynamic and particle physics entering, those calculations will have to be rethought. I was asking whether the baryon asymmetry is taken into account in the CMB calculations.