What would be the consequence of implementing interfaces as fat pointers ?

[Walter Bright]

On 3/31/2014 3:09 AM, Artur Skawina wrote:
> This is a catastrophic failure mode. Op overloads may be added to the pseudo-C
> after it's already written and working, and then a) the bug might go unnoticed,
> and b) fixing it requires API changes. See also my other reply.

Manu brought up the same issue, see my reply to him.