i don't fully know Go yet - watch out for b/s in my part.
Go is deliberately frugal with syntax and features. syntax has
dispensed with anything that's not absolutely necessary; e.g. compare
type declaration with Limbo's use of ':' (which, btw, made Limbo's
':=' syntax more natural than Go's) or absence of parens around
conditionals. for an interesting exercise compare 'defer' and 'goto'
with 'try{}catch{}finally{}'.