Video of this talk is not available any more ?

[safareli]

This is original link which is not working:
https://yow.eventer.com/yow-lambda-jam-2015-1305/cofun-with-cofree-comonads-by-david-laing-1891

I askeda about it too on twitter, no answer yet
https://twitter.com/safareli/status/900811951181357056

[safareli]

This is the only ("non official") thing I found http://www.bilibili.com/video/av4136574/