Actual slides: https://shadow.cat/resources/slides/matt-s-trout/2011/yapc-n... - and I did use part of these slides once more, but that's not exactly "several years".

If anybody's confused why there's a downwards arrow on one of the slides it was so I could stand underneath it to proclaim myself loud, blunt and obnoxious at the start of the 'assholes' section because this was a community hacking talk and I was identifying myself as part of the group I was about to talk about.

I don't even have access to any of the relevant bits of youtube.

This is just getting silly now :(