Are these bencmarks recent and real?

[Imperatorn]

On Tuesday, 31 August 2021 at 15:09:11 UTC, Steven Schveighoffer 
wrote:
> On 8/30/21 1:15 PM, Ali Çehreli wrote:
>> [...]
>
> initializers *sometimes* can be computed at compile time. If 
> assigned to a const or immutable variable, the compiler is 
> smart enough to know that the item hasn't changed, and so it 
> can go back to the static initializer for what the value 
> actually is.
>
> [...]

"Someone" "should" make a D cheat sheet! Like some best 
practices, tips n tricks to stay healthy in the D universe