The whole concept of Perl 6 frightens me. I fear that I'll have to relearn large chunks of the language. I fear that I'll have to do a major porting effort on my existing code should Red Hat, Sun, or SGI decide to ship with Perl 6 instead of 5. It's not so much that I fear change, just big change.
in reply to Perl 6 feature that scares me the most:
The rational part of my mind tells me that if I took an afternoon and read the relevant web pages, I'd probably find that it's not going to be so bad. Thing is, that part of my mind also tells me to go to the gym, eat salad, and study C, so it clearly can't be trusted.
"What do I want? I'm an American. I want more."