DESI will measure the 3D position of 30 million galaxies during the next five years
to precisely characterize the nature of Dark Energy with baryon acoustic oscillations &
redshift-space distortions. Unique signatures present in the large-scale distribution of
galaxies further limit the level of non-Gaussian fluctuations present in the early Universe
and the mechanism of Inflation by extension.
I will introduce the DESI experiment, summarise the expected returns and implications for
our understanding of the Universe, and give a status update on where we are today. I’ll then
present the design of a natural successor to DESI focused on the 2 < z < 5 volume that promises
to deliver the same advancements for Inflation that DESI will achieve for Dark Energy.