A learned reader points out that in the international education market what goes up can come down and quickly (CMM yesterday). While Chinese student numbers grew by 56 per cent between 2009 and 2017, to 130 000, there was a biggish dip between 2011 (93 000) and 2013 (85 000). Similarly, enrolments from India declined between 2009 and 2012 by 60 per cent, to just 12 000. Changes in country-markets can happen fast.