I just discovered this when I went to the store, and will probably take a nice long walk in the evening/night heat to devour at least part of this delicious rel

I just discovered this when I went to the store, and will probably take a nice long walk in the evening/night heat to devour at least part of this delicious release. What a nice gem to randomly receive. I'm curious to know what Carmack has been doing especially in regard to AI.