[dragonwriter]

> > Go is 1-2 orders of magnitude faster than Ruby, and much easier to write concurrent code in.

> Than MRI Ruby you mean.

Given the nature of orders-of-magnitude comparisons and the lack of Ruby implementations that are even one order of magnitude faster than MRI, "...than Ruby" is reasonably accurate if "...than MRI Ruby" is at all accurate.

> The advantage wouldn't be as much if Ruby designers cared to add AOT compilation in the same vein as Dylan or Common Lisp to the canonical implementation.

Maybe, though that's unproven. AFAIK, actual Ruby implementations with AOT only seem to gain about a factor of 2 improvement, not an order of magnitude.