Always false float comparisons

[deadalnix via Digitalmars-d]

On Tuesday, 17 May 2016 at 18:08:47 UTC, Timon Gehr wrote:
> Right. Hence, the 80-bit CTFE results have to be converted to 
> the final precision at some point in order to commence the 
> runtime computation. This means that additional rounding 
> happens, which was not present in the original program. The 
> additional total roundoff error this introduces can exceed the 
> roundoff error you would have suffered by using the lower 
> precision in the first place, sometimes completely defeating 
> precision-enhancing improvements to an algorithm.
>

WAT ? Is that really possible ?