Are there any examples of realistic holography (likely as a de Sitter type Universe: as it approximates FRW / is an FRW solution without baryonic and dark matter). I don’t see why one wouldn’t be motivated to say the current regime of cosmology is approximated by de Sitter space and therefore a dS/CFT model is a fruitful area of study?
If there are any examples of holography in applied / realistic cosmology, I would appreciate them being linked or listed!
I’ve personally found that the most interesting and robust examples of AdS/CFT are for speculative / toy models so I wondered if there are realistic constructions. I appreciate any input!