This is the aberration we have reached in sneakers.

Think about it in terms of biomechanics: you're doing this to gain cushioning, you're cheating, it's like running on springs, but look at the mechanical aspect, what stability does this offer you? It's a sure-fire way to get injured; the healthiest thing is to run barefoot.

Between running barefoot and this aberration, there is a middle ground that is becoming increasingly non-existent.