Good content. The title might be slightly misleading as it was more related to optimisation suggestions than it were to optimisation mistakes.
Fluent, but fast speaking style.
Kevlin is really natural speaker, great listen and great topic.
The narrative seems to be missing, it might be nicer to have the sections linked in.
I would've liked even more focus on behavioural patterns like Decorator and how these either positively or negatively influence your reusability. I rather liked the scoop on Traits.
A talk that makes your mind fizz and pop with new ideas, enthusiasm and excitement.
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Great speaking style. Inspiring and entertaining.
Well done!
things that makes you go hrmmm This must be about me! Inspirering and filled with good humor
Brilliant opening to the conference. Really interested to read about the other 80 or so things!
Great opening key note by a very charasmatic speaker. The talk has something for all levels of programmer, with very accessably examples.
Great speaker and wonderful keynote
Unfortunatly I did not like this talk. The content on it's own was ok but he is not the best speaker to make the content really interresting and entertain you at the same time.