Thing that makes me somewhat sad is there isn't much reason why you couldn't fix some of C's syntax and other issues. I feel like any breaking changes wouldn't

Thing that makes me somewhat sad is there isn't much reason why you couldn't fix some of C's syntax and other issues. I feel like any breaking changes wouldn't be that big of deal as long as you have a backwards compatible ABI. Say you add fn and var as keywords. Exactly how hard would that be to fix? You could probably write a tool to do that.