**Less Decoherence and More Coherence in Quantum Gravity, Inflationary Cosmology and Elsewhere**\

Elias Okon${}^1$ and Daniel Sudarsky${}^2$\

${}^1$*Instituto de Investigaciones Filosóficas, Universidad Nacional Autónoma de México, Mexico City, Mexico.*\
${}^2$*Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico City, Mexico.*

**Abstract:** In [@Crull] it is argued that, in order to confront outstanding problems in cosmology and quantum gravity, interpretational aspects of quantum theory can by bypassed because decoherence is able to resolve them. As a result, [@Crull] concludes that our focus on conceptual and interpretational issues, while dealing with such matters in [@Oko.Sud:14], is avoidable and even pernicious. Here we will defend our position by showing in detail why decoherence does not help in the resolution of foundational questions in quantum mechanics, such as the measurement problem or the emergence of classicality.

Introduction {#Int}
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Since its inception, more than 90 years ago, quantum theory has been a source of heated debates in relation to interpretational and conceptual matters. The prominent exchanges between Einstein and Bohr are excellent examples in that regard. An avoidance of such issues is often justified by the enormous success the theory has enjoyed in applications, ranging from particle physics to condensed matter. However, as 