Excellent text, Prof. Dodelson. Something I often wonder about is why we have been paying so much attention lately to the tensions (such as the H₀ and σ₈ ones) and discussing the cosmological constant problem so little. In my view, the cosmological constant problem is an even more worrying conceptual issue within the LCDM model.
Great point; I was planning on writing about this in a few weeks. How did LCDM come to be accepted even though we all knew the value of the cosmological constant required is crazy? Interested if you [or anyone else] has any thoughts about how/why people have become comfortable sweeping the problem under the rug.
Excellent text, Prof. Dodelson. Something I often wonder about is why we have been paying so much attention lately to the tensions (such as the H₀ and σ₈ ones) and discussing the cosmological constant problem so little. In my view, the cosmological constant problem is an even more worrying conceptual issue within the LCDM model.
Great point; I was planning on writing about this in a few weeks. How did LCDM come to be accepted even though we all knew the value of the cosmological constant required is crazy? Interested if you [or anyone else] has any thoughts about how/why people have become comfortable sweeping the problem under the rug.