The AV Club's recent review of some flavorless "Margarita Chips" made me remember (with horror) the time I lost my taste for several weeks. And then it made me wonder:
What yet-to-be invented food would simultaneously be the most useless and the grossest?
I would nominate Pop Rock Potato Chips. Instead of being coated with salt and tiny flakes of, say, dried green onions, they'd be lightly dusted with fizz crystals. Greasy and crackly.