Great article!
A while back, I was thinking about AI and interactive worlds and how so many games "try" to achieve cutting edge virtual worlds, but fall so short. Oblivion is actually less impressive to me compared to Ultima V in its ability to convey a living-breathing world. So what's holding back the advances of believable and engaging AI and limitless interactivity in today's games? The cost of graphics, animation, music, voiceovers, sound, simulated physics, etc... you know, all that stuff that IF doesn't have to worry about. ;-)
If gamers really want virtual worlds with true freedom, logical consequences, environments that that change, and characters that they can truly empathize with... it may very well happen in the IF realm first. It'll be interesting to see how things turn out as the IF community continues to grow.
Inform 7 seems to make creating simulated worlds accessible to everyone with its natural language programming and powerful object relation scheme. I was completely oblivious to the power and flexibility of IF until I read this article. Thanks, Lara!