The Smallest Thing in Go

This is a great primer on iota but the title doesn't make sense to me. I expected talking about an empty struct that uses zero bytes

Not sure where I read it, but I think it's useful to have your 0th iota value be a not valid value, or as your empty/zero value for the enum. Maybe in the planet example you have "Space" or "Nothingness" as your 0 value

This looks like plain old enum in plain c.<p>Did I miss something that makes it remarkable?