Even the Mainstream Quackademics are dancing around the premise that the Big Bang – which is tied directly to the Hubble Constant – is having SERIOUS issues in the foundations of the Theory itself.. PBS is about as Mainstream as you can get and even THEY are screaming of problems with the foundations of Big Bang physics!
The search for a single number: the hubble constant, which is the rate of expansion of our universe, has consumed astronomers for generations. Finally, two powerful and independent methods have refined its measurement to unprecedented precision. The only problem is that they don’t agree. This calls into question some of our most basic assumptions about the universe.