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Can you recommend any casual (article-sized) reading about this? Sounds really interesting!

Edit: xtacy's post answers me entirely.

For a quick and general purpose introduction on Causality, the Epilogue of a former book of Pearl is great : "The Art and Science of Cause and Effect" http://bayes.cs.ucla.edu/BOOK-2K/causality2-epilogue.pdf

Thank you! This rather blew my mind and I hope others take time to try it out.