jhi gave me a heavy book, Unicode Demystified, which really made sense to me. I brought jhi's concerns to #parrot, mainly about the combinatorial explosive danger of introducing charsets other than ASCII/Latin1/Unicode, and the benefit of shifting away from UTF8 as internal encoding, by determining the optimal charset (i.e. 7/8/16/21 bits of Unicode) at PIR compilation time. Leo seems receptive, but more benchmark number is needed.
So I returned to
Then I was abducted by another fantastic book -- Code Complete 2nd Edition -- which convinced me that this whole ten-day yakshaving was actually worth it.
Happily, my anxiety level now is at its all-time low in ten years, and commitment to Perl6/Pugs at its all-time high in ten months, so that's definitely improvement. More details later.