[sdiy] Do digital filters still explode?

[Colin f]

> Well, i do remeber the word explode but if it was Collin who 
> said it, well i can be completely wrong.
> 
> The statement then included a explosion of overtones and 
> undertones, explosion such as in sudden boom of aliasing, 
> perhaps something similar to too deep and drastic change of 
> modulation index in a FM oscillator ,burst of squelchy noise.

I don't recall ever saying they explode.
That quote contains more detail than I know about digital filters.

Cheers,
Colin f