Rosetta and Snow Leopard
Rosetta only takes up a few megabytes of drive space, and without it older programs simply won’t run, so if you have such programs, that option is worth checking.…I can only assume that making Rosetta optional is an attempt by Apple to goad users to upgrade their apps and to shame developers who still haven’t recompiled their apps to run on Intel chips. But given that most everyday users have no idea which of their apps are Intel-native and which are PowerPC, this seems unnecessarily harsh.
