"[2] After receiving a single brief career advice session he instead decided to apply to the London School of Economics "to study mathematical statistics, with a view to being an actuary.

"[2] As a first year LSE student Worrall elected Alan Musgrave's 'Introduction to Logic' module as his sole optional course unit.

This choice included a further optional lecture series, given by Karl Popper, which Worrall also attended, later saying "[…] most of my fellow logic students soon dropped them.

He has also published widely in journals and anthologies, edited Imre Lakatos's collected works, and a recent volume on The Ontology of Science.

[4] Worrall discussed Popper's theory of falsification in an episode of A History of Ideas broadcast on BBC Radio 4 on 5 August 2015.