deletions | additions       diff --git a/Lecture_12_Economics_of_ageing__.md b/Lecture_12_Economics_of_ageing__.md  index 14cb36b..18812c0 100644  --- a/Lecture_12_Economics_of_ageing__.md  +++ b/Lecture_12_Economics_of_ageing__.md 
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# Economics of ageing    I was 10 minutes late to this lecture because in support of social equity, in  a rare acknowledgement of Australian Rules Football Football,  I was  watching a bunch of ageing men prance around chasing each other and a blown-up piece of leather in support of social equity. leather.  https://twitter.com/cobismith/status/638885854631493632 
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