The difference between a slice and indexing is the context in which the index expression is evaluated.

I see. That's why this sentence is found under Slices in perldata. Learnt something new today, thank you.

update: looks like a statement like this one deserves downvoting for some. *shrug*

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}