Okay, found it, but seriously, next time add a timestamp, please.
Well, that would be possible and acceptable as well.
The reason, Jonathan did it this way, was probably partly to demonstrate this method, but also, because Linking the Object Data in this case is at least just as fast (if you don’t have to explain what you are doing) and it has the advantage of using less Memory. With Linking, you get 2 monkeys for ‘the price of’ 1 and with Duplicating you ‘have to pay’ for both monkeys (and you even ‘have to pay’ for the Deleted Monkey, because that Data is still kept in Blender, at least until you close the program).
