Essentially Carmack pointed in the slides that teaching AI to play game a, b or c didn't improve AI at all at learning game d from scratch. That's essentially

Essentially Carmack pointed in the slides that teaching AI to play game a, b or c didn't improve AI at all at learning game d from scratch. That's essentially what we're looking for when we talk about general intelligence, the capability to adapting what we know to what we know nothing about.