[stcredzero]

Not without tying Go to one architecture, no.

Not trying hard enough to prove the null hypothesis. If you're going full pedantic mode, why stop at one ISA? Just throw in the most relevant dozen. (Heck, I even spelled that out!)

[MaxBarraclough]

That doesn't escape the problem. If you do that, your new definition of the core Go language is no longer cross-platform.

[stcredzero]

It's cross platform enough for most people.