I guess I have most of the same thoughts others have.   I worry that Larry and Damian might overreach and get some really basic thing muddled.   I don't want to have to do $filehandle.autoflush(1) instead of $|++.   And '_' instead of '.' for concat?!
But then I was reading exegesis 3 and came to Damian saying "in perl5 that would be...".   I had a momentary sensation like accidentally coming on some Fortran code or something and thinking: "Boy, I remember when we had to go through all that just to get something done".   So, now I've stopped worrying (and I'm getting impatient with perl5).