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I believe the main issue is the rubber and chemicals from the nice road surfaces. So your argument seems like a problem looking for a solution?

• necovek 2y ago
  That's wrong: the problem is the rubber on the wheel (or feet in case of legs) being spent due to the traction and emission of rubber microparticles as it is.
  • Loughla 2y ago
    Yes sorry I wasn't clear enough. Rubber and chemicals from tires on the nice road surfaces. That's what that should have said. But the legs are still a solution in search of a problem.
    • necovek 2y ago
      Sure, the original article is about a legged movement, and the entire thread is about microparticle (plastics/rubber) emission comparison between wheels and legs.