Soleless consumption: Nike is developing shoes bound for the trash--lightweight, disposable running shoes that only last for 60 miles. Price: $45. They're also developing a $250 shoe, "arguably the most high-tech shoe ever built... it is complete with a computer microchip and operating system that analyzes a runner's step and starts making cushioning adjustments in the heel of the shoe based on the runner's impact with the particular terrain after just three steps." Whew, just in the nick of time for both of these important manufacturing developments.