--- a/handouts/ho08.tex	Wed Apr 19 11:41:39 2017 +0100
+++ b/handouts/ho08.tex	Wed May 31 09:26:47 2017 +0100
@@ -23,6 +23,21 @@
 % bit-coin papers
 % https://crypto.stanford.edu/cs251/syllabus.html
 
+% bit coin talk --- at 20:00 mins
+%https://www.usenix.org/conference/lisa16/conference-program/presentation/perlman
+
+% In fact, far from freeing people from the oppression of the state,
+% blockchains perversely promise the perfect tool for a fully
+% auditable, tax compliant, cashless society. Similarly, the belief it
+% is an anonymous digital cash has quickly vanished and we are now
+% seeing a large number of analytics companies, set-up specifically to
+% work with law enforcement agencies, to police this new parallel
+% financial system.
+%
+% But today blockchain is riddled with
+% contradictions and misunderstandings. Most of its problems are very
+% fixable, if you want to fix them
+
 \begin{document}
 \fnote{\copyright{} Christian Urban, 2014, 2015}