Boost with 12:1 & pump gas possible?

Why in the WORLD would you think that 12.5:1 compression plus boost could ever be pump gas friendly when 12.5:1 compression by itself is not.

Hey thanks to boys for the actual replies. I was just bored, and seeing if anyone had tricks and gotten away with it. You would be surprised on what some of these guys are getting away with on pump gas these days.
I run 94 with 12.5 and 34 locked out. No detonation/pinging at all.