The argument you're making is in favor of my argument of regulating HFT (I want a limit to daily or weekly trade, others want more taxation).

As to regulation on healthcare/drones/cars etc. things aren't perfect, that's all I'm saying. I think things are too restrictive right now, I'm not arguing for abolition of all regulations.

edit: Yes, retail investors should be trading more. That's the idea behind the recent rise in crowdfunding. Innovation happens a lot faster in small c capitalism than in big C capitalism.