![Jeff Horn and Manny Pacquiao trade blows in their WBO world welterweight title fight.](http://web.archive.org./web/20170708122117im_/https://www.fairfaxstatic.com.au/content/dam/images/g/x/6/l/n/a/image.related.landscape.460x307.gx6bh2.png/1499396230455.jpg)
Heads you lose – every time
The fact of Donald Trump suggests we have peaked as species and are on the decline. None the less, wherever we are in 100 years, historians will look back at the last week and scratch the unprotected part of their heads in wonder.