Y'know it's weird but it's never bothered me too much that python type hints don't do anything at runtime. It's enough to just know what someone, at some point,

Y'know it's weird but it's never bothered me too much that python type hints don't do anything at runtime. It's enough to just know what someone, at some point, intended. (And PyCharm is pretty good about pointing out when they're wrong, anyway). I guess when it comes down to it, given we're not statically typing, I still get an awful lot of mileage out of just knowing when my assumptions about the code conflict with someone else's assumptions about the code (even if that other person is subtly wrong, like anystr vs str or something). Sorbet has a runtime time-checking mode I think, too, so that's actually a point in favor to ruby for you (though again with the drawbacks I mentioned of being a gem and imo being a little clunky syntax-wise).