The spirit associated to the above-mentioned "axiom" is driving your application to pay the costs of using managed code at the proper time, where and when you can afford those costs.
All the slides where quite interesting, and many relevant things were stated like:
- "not all the dots are created equal" (this is related to "inlining").
- structs are not as weel handled as reference types (although structs are sometimes preferable).
- exception handling constrains optimization, and
- many more.
Finally, there was a great comment, the proof for non-believers that managed code is suitable for game design are all the games that were created for the 360 using managed code (through XNA GSE, of course).
Well, now is Shawn's turn, so gotta go again.