It should be noted here, or somewhere, that EA just today announced a "64-bit friendly" (this is what I am calling it until we get more info) version of TS3 for Mac to be released early next year. Unlike for Windows, the Mac version of the game as it now stands will not run at all on the next macOS to be released probably within a few weeks because unlike Microsoft, Apple is dropping all support for 32-bit applications for those who stay current on the OS.
https://answers.ea.com/t5/Technical-Issues-Mac/An-announcement-for-The-Sims-3-players-on-Mac/m-p/8271641#M5813
Most of us who have commented about this at MTS don't really believe this is a 64-bit version of the game, but rather a way to trick the current 32-bit only version into running in a 64-bit environment. But we wait and remain ever hopeful for surprises. :)
