Claim ds-008 · Atlas v1.2.0

An order-one value of c has been argued to be in tension with slow-roll inflation and with the observed value of the cosmological constant.

ds-008Active research

An order-one value of c has been argued to be in tension with slow-roll inflation and with the observed value of the cosmological constant.

Why it is stated this way
This is the main cosmological objection from the landscape side: the same order-one constant that makes the conjecture powerful also makes it hard to reconcile with inflationary phenomenology and with the observed dark-energy sector.
Scope and limitations
The tension depends on which version of the conjecture is used and on assumptions about the inflationary sector. It is an argument in a live dispute, not a refutation.
Sources

Last reviewed 2026-07-27 · Atlas v1.2.0

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Source cards — 1

VerifiedObservational or experimental result2018

Cosmological critique of the de Sitter conjecture ↗

Authors
Akrami, Kallosh, Linde, Vardanyan
ID
arXiv:1808.09440

Why this source is here — The cosmological critique of the conjecture, cited so the landscape side of the objection is represented.

Title not recorded in the source map; named here as the source map names it.