Not to worry, the last two paragraphs explain why it won't take over the world:

"I was euphoric. I felt the endorphins rushing through my body, the gob of chicken skin wandering down my esophagus, the juices staining my chin. Rob, who'd joined us, led a conversation about the food technology; the chicken was sublime. Before long, I might as well have been stoned. For a half an hour, I sat there, overwhelmed, unaware of any foodless world outside my brain."

"For a few minutes, the future didn’t matter; the taste, the the swirling talk took over. The food anchored me to the glorious present, and eating was all."