Fwiw he didn't say Darcs will replace git, he said that whatever eventually replaces git will likely implement some of Darcs best features like the patch algebr

Fwiw he didn't say Darcs will replace git, he said that whatever eventually replaces git will likely implement some of Darcs best features like the patch algebra. Hence, it's worth taking a little time to actually understand those features, even if you never use darcs. Plus the mental exercise and learning something new is valuable in and of itself.