Yes, that’s all correct. My point is that if you’ve wanted to play Zork or other Infocom games on your modern computer, you’ve been able to do so for decades us

Yes, that’s all correct. My point is that if you’ve wanted to play Zork or other Infocom games on your modern computer, you’ve been able to do so for decades using Frotz. The article makes it sound like running the games had been impossible until now, which is not true. The main reason the discovery of the original interpreter source code is interesting has nothing to do with running the games. It’s for historical interest and for anyone looking for some insight into the development process for an early example of a portable virtual machine. Unfortunately, the source code is light on such details.