Will D always have a way to rebind an arbitrary data type?

[FeepingCreature]

On Wednesday, 29 September 2021 at 07:27:50 UTC, FeepingCreature 
wrote:
> The only recourse I can see offhand, without language changes, 
> would be to laborously build an "equivalent but mutable type" 
> out of `void[size_t.sizeof]` and `ubyte[size_t.sizeof]` 
> fragments.

I've done this: https://code.dlang.org/packages/rebindable 
https://forum.dlang.org/thread/qnzxruolyeozohflretb@forum.dlang.org