Description
Scope: What are the most important big questions of cosmology? How do we hope to make progress? Is the H0 tension a good guide towards it?
Questions:
Will the cosmic tensions bring us closer to an understanding of dark energy, the cosmological constant problem, the origin of dark matter, or other fundamental problems in cosmology?
Does a modification of gravity in the IR play a role?
How reliable are the LCDM-inferred initial conditions of the Universe? In particular, will the Hubble tension change our understanding of the very early universe and inflation?
Is there a connection to the origin of neutrino masses?
Is there a connection to quantum gravity (axiverse, swampland)?
Is the H0 tension a window into the dark sector, and what can we learn about dark matter? Dark energy? Neutrinos? Other?
Which of these questions (if any) are we guaranteed to find an answer to?