Challenge: write a reference counted slice that works as much as possible like a built-in slice

[Dom DiSc]

On Thursday, 11 November 2021 at 10:06:44 UTC, Ola Fosheim 
Grøstad wrote:
> On Thursday, 11 November 2021 at 09:15:54 UTC, Atila Neves
> > wrote code for a microcontroller once with 1k with 
> > addressable bits. Good times. Sorta.
>
> That's a lot! As a teen I did a project on Motorola 6800. I 
> think it was launched with a whopping 128 bytes of static RAM,

How is 1k bits "a lot" compared to 128 bytes (which is exactly 
the same amount)?!?