I studied post-grad ML and I can say you really don't need to go this deep to use ML - check out http://fast.ai for a code-first practical crash course :)
https://news.ycombinator.com/item?id=14887414
Apparently there's been a bit of "broken links and poorly organized content". If you decide to try it out, don't miss http://wiki.fast.ai/
PS. Ask HN: Best way to get started with AI? | https://news.ycombinator.com/item?id=15689399 (3 days ago)