https://actuaries.org.uk/media/isvotyer/parasol-lost.pdf

The first link in the description appears to be what the “parasol” in the title comes from.

It seems to be a partially AI-generated report by the University of Exeter, with the cover image being the most obvious marker. The “parasol” in the title doesn’t seem to represent anything specific, so maybe that was AI-generated too, or maybe it was artisan hand-crafted clickbait.