Essentially the same trick was employed nine years ago by Juerd for his Non-destructive array processing.
And I reused it 9 months later in Re: Re: reference to an array slice?.
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
RIP Neil Armstrong