Editions Ideas

[jmh530]

On Sunday, 14 December 2025 at 06:49:14 UTC, Walter Bright wrote:
> On 12/13/2025 9:45 AM, jmh530 wrote:
>> All else equal, I would recommend trying to more closely 
>> follow what Rust has done, particularly with respect to 
>> lifetimes, since that has traction in the marketplace. I also 
>> have found the arguments for an isolated type to be strong.
>
> Lifetimes are what the dip1000 annotations do.

My broader point was that one clearly has gained more market 
share than the other. I think the cognitive load of Rust’s 
lifetime rules is lower than DIP 1000. The nice thing about 
Dip1000 is that it made scope actually do something, but the 
whole system requires keeping more in your head than Rust’s.

Lifetimes are as it relates to DIP1000, but the ownership system 
is probably as important for Rust’s popularity. You tried @live 
for ownership and I think that’s got much more pushback than 
DIP1000.