Neither, obviously. The proximal cause of sneezing is a complex of
neuro-muscular behaviors. That complex has an untold number of triggers, from
bright lights and sound to tickling. Any competent analysis of such causation
will focus on the *bottleneck*, which is the neuro-muscular complex, not the
huge number of triggers.
On 02/22/2018 09:22 AM, Nick Thompson wrote:
> Is sneezing caused by dust OR by the forceful expulsion of air through our
> nasal tracts? We would never ask such a question, right?
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